{"title":"Engine Sleeves","description":"","products":[{"product_id":"bc-brian-crower-darton-mid-block-sleeves-va-wrx-bc8065","title":"BC Brian Crower Darton MID Block Sleeves for FA20 VA Subaru WRX (BC8065)","description":"\u003cp\u003eThe Darton MID™ Sleeve Kit is available for the VA WRX FA20 engine, providing maximum bore sizes of 86-90mm for improved cooling, as well as high boost and horsepower potential. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e \u003cbr\u003e2015-2021 Subaru WRX\u003cbr\u003e(VA FA20 DIT turbo) \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e \u003cbr\u003eDarton Sleeves \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e \u003cbr\u003e• Cast iron performance in an aluminum block \u003cbr\u003e• Improved block integral strength \u003cbr\u003e• Improved cooling \u003cbr\u003e• Increased horsepower output potential \u003cbr\u003e• High boost and horsepower potential \u003cbr\u003e• Superior oil and compression control \u003cbr\u003e• Superior cylinder sealing and ring wear \u003cbr\u003e• Kits can be installed by your local machine shop \u003cbr\u003e• Full installation manual available on website \u003cbr\u003e• Street or strip application \u003cbr\u003e• Bulletproof Darton ductile iron, \u003cbr\u003e• 130,000-psi tensile strength \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecs:\u003c\/span\u003e \u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e BC8065 \u003cbr\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e: BLOCK SLEEVES - Darton M.I.D. (Subaru BRZ, Scion FR-S, Toyota GT86) \u003cbr\u003e\u003cstrong\u003eDarton P\/N:\u003c\/strong\u003e 800-900 \u003cbr\u003e\u003cstrong\u003eBore Size:\u003c\/strong\u003e 86-90mm \u003cbr\u003e\u003cstrong\u003eSemi Bore:\u003c\/strong\u003e 3.750\" \u003cbr\u003e\u003cstrong\u003eO.D.: \u003c\/strong\u003e4.000\" \u003cbr\u003e\u003cstrong\u003eWall Thickness: \u003c\/strong\u003e0.312\" \u003cbr\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e 4.900\" \u003cbr\u003e\u003cstrong\u003eFlange Thickness:\u003c\/strong\u003e 0.350\" \u003cbr\u003e\u003cstrong\u003eFlange Diameter:\u003c\/strong\u003e 5.198\" \u003cbr\u003e\u003c\/p\u003e\n\u003ca href=\"https:\/\/stmtuned.com\/collections\/bc-brian-crower-products\" style=\"color: #afafaf;\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more BC Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"BC Brian Crower","offers":[{"title":"Default Title","offer_id":50560598933846,"sku":"BC-BC8065","price":962.46,"currency_code":"USD","in_stock":true}]},{"product_id":"bc-brian-crower-darton-mid-block-sleeves-r35-gtr-bc8025","title":"BC Brian Crower Darton MID Block Sleeves for 2009+ Nissan R35 GTR (BC8025)","description":"\u003cp\u003eThe Darton MID™ Sleeve Kit is available for the GTR CR38 engine and provides maximum bore sizes of 95-100mm for high boost and horsepower potential. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e \u003cbr\u003e2009+ Nissan R35 GTR (VR38DETT) \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e\u003cbr\u003eDarton Sleeves \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e \u003cbr\u003e• Cast iron performance in an aluminum block \u003cbr\u003e• Improved block integral strength \u003cbr\u003e• Improved cooling \u003cbr\u003e• Kits can be installed by your local machine shop \u003cbr\u003e• Full installation manual available on website \u003cbr\u003e• Increased horsepower output potential \u003cbr\u003e• High boost and horsepower potential \u003cbr\u003e• Superior oil and compression control \u003cbr\u003e• Superior cylinder sealing and ring wear \u003cbr\u003e• Street or strip application \u003cbr\u003e• Bulletproof Darton ductile iron, \u003cbr\u003e• 130,000-psi tensile strength \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eSpecs:\u003c\/span\u003e \u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e BC8025 \u003cbr\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e: BLOCK SLEEVES - Darton M.I.D. (Nissan VR38DETT) \u003cbr\u003e\u003cstrong\u003eDarton P\/N:\u003c\/strong\u003e 800-215 \u003cbr\u003e\u003cstrong\u003eBore Size:\u003c\/strong\u003e 95.5-100mm \u003cbr\u003e\u003cstrong\u003eSemi Bore:\u003c\/strong\u003e 3.720\" \u003cbr\u003e\u003cstrong\u003eO.D.: \u003c\/strong\u003e4.450\" \u003cbr\u003e\u003cstrong\u003eWall Thickness: \u003c\/strong\u003e0.365\" \u003cbr\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e 6.231\" \u003cbr\u003e\u003cstrong\u003eFlange Thickness:\u003c\/strong\u003e 0.400\" \u003cbr\u003e\u003cstrong\u003eFlange Diameter:\u003c\/strong\u003e 5.060\"\u003cbr\u003e\u003c\/p\u003e\n\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/bc-brian-crower-products\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more BC Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"BC Brian Crower","offers":[{"title":"Default Title","offer_id":50560601129302,"sku":"BC-BC8025","price":2010.11,"currency_code":"USD","in_stock":true}]},{"product_id":"bc-brian-crower-darton-mid-block-sleeves-4b11-evo-x-bc8011","title":"BC Brian Crower Darton MID Block Sleeves for 4B11 Evo X (BC8011)","description":"\u003cp\u003eThe Darton MID™ Sleeve Kit is available for the Evo X 4B11T engine and provides maximum bore sizes of 86-90mm and maximum power\/ boost potential. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e \u003cbr\u003e2008-2015 Mitsubishi Lancer Evolution X\u003cbr\u003e(4B11T CZ4A Evo X GSR and MR models) \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e\u003cbr\u003eDarton Sleeves \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e \u003cbr\u003e• Cast iron performance in an aluminum block \u003cbr\u003e• Improved block integral strength \u003cbr\u003e• Improved cooling \u003cbr\u003e• Kits can be installed by your local machine shop \u003cbr\u003e• \"Wet sleeve\" replace-ability \u003cbr\u003e• Full installation manual available on website \u003cbr\u003e• Increased horsepower output potential \u003cbr\u003e• High boost and horsepower potential \u003cbr\u003e• Superior oil and compression control \u003cbr\u003e• Superior cylinder sealing and ring wear \u003cbr\u003e• Street or strip application \u003cbr\u003e• Bulletproof Darton ductile iron, \u003cbr\u003e• 130,000-psi tensile strength \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eNotes:\u003c\/span\u003e \u003cbr\u003ePart Number: BC8011 \u003cbr\u003eDescription: BLOCK SLEEVES - Darton M.I.D. (Mitsubishi 4B11T - Evo X) \u003cbr\u003eDarton P\/N: 800-160 \u003cbr\u003eBore Size: 86-90mm \u003cbr\u003eSemi Bore: 3.370\" \u003cbr\u003eO.D.: 3.850\" \u003cbr\u003eWall Thk: .240\" \u003cbr\u003eLength: 5.475\" \u003cbr\u003eFlange Thk: .400\" \u003cbr\u003eFlange Dia: 4.625\"\u003cbr\u003e\u003c\/p\u003e\n\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/bc-brian-crower-products\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more BC Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"BC Brian Crower","offers":[{"title":"Default Title","offer_id":50560611549526,"sku":"BC-BC8011","price":1008.77,"currency_code":"USD","in_stock":true}]},{"product_id":"bc-brian-crower-darton-dry-sleeve-kit-4g63-evo-dsm-bc8010","title":"BC Brian Crower Darton Dry Sleeve Kit for 4G63 Evo\/DSM (BC8010)","description":"\u003cp\u003eBC Brian Crower engine block sleeves for 4G63 Evo 1-9, 1G\/2G DSM and GVR4. Mitsubishi 4G63 Darton Dry Block Sleeves (85mm to 86mm bore) \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e1992-2006 Mitsubishi Evolution I-IX (Evo 1-9) \u003cbr\u003e1990-1999 Mitsubishi Eclipse GST\/GSX\u003cbr\u003e1990-1998 Eagle Talon TSi\u003cbr\u003e1990-1994 Plymouth Laser RS\u003cbr\u003e1991-1992 Mitsubishi Galant VR4 \u003cbr\u003e(4G63 Engine) \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e\u003cbr\u003eDarton Sleeves \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e \u003cbr\u003e• Cast iron performance in an aluminum block \u003cbr\u003e• Improved block integral strength \u003cbr\u003e• Improved cooling \u003cbr\u003e• Kits can be installed by your local machine shop \u003cbr\u003e• Full installation manual available on website \u003cbr\u003e• Increased horsepower output potential \u003cbr\u003e• High boost and horsepower potential \u003cbr\u003e• Superior oil and compression control \u003cbr\u003e• Superior cylinder sealing and ring wear \u003cbr\u003e• Street or strip application \u003cbr\u003e• Bulletproof Darton ductile iron, \u003cbr\u003e• 130,000-psi tensile strength \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eNotes:\u003c\/span\u003e\u003cbr\u003ePart Number: BC8010\u003cbr\u003eDescription: BLOCK SLEEVES - Darton M.I.D. (Mitsubishi 4G63)\u003cbr\u003eDarton P\/N: 300-050 \u003cbr\u003eBore Size: 85-86 \u003cbr\u003eSemi Bore: 3.335\" \u003cbr\u003eO.D.: 3.520\"\u003cbr\u003eWall Thk: .092\"\u003cbr\u003eLength: 5.800\" \u003cbr\u003eFlange Thk: .140\" \u003cbr\u003eFlange Dia: 3.72\"\u003cbr\u003e\u003c\/p\u003e\n\u003ca href=\"https:\/\/stmtuned.com\/collections\/bc-brian-crower-products\" style=\"color: #afafaf;\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more BC Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"BC Brian Crower","offers":[{"title":"Default Title","offer_id":50560620626262,"sku":"BC-BC8010","price":632.54,"currency_code":"USD","in_stock":true}]},{"product_id":"300-055-darton-2jz-supra-dry-sleeves","title":"Darton Dry Sleeves for 2JZ-GTE Supra (300-055-SF\/DF)","description":"Darton Dry Iron Sleeves for the 2JZ-GTE Toyota Supra replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.\u003cbr\u003e\u003cbr\u003eA \"Dry Sleeve\" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.\u003cbr\u003e\u003cbr\u003eDarton sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2JZ-GTE Toyota\u003cbr\u003e1993-1998 Supra TT MK4 MKIV\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e6 Sleeves\u003cbr\u003e(2) SF = Single Flat (300-055-SF)\u003cbr\u003e(4) DF = Double Flat (300-055-DF)\u003cbr\u003e\u003cbr\u003eThe two sleeves for cylinder 1 \u0026amp; 6 are a \"SF\" meaning they have one side that is flat. Cylinder 2\/3\/4\/5 in the center are a \"DF\" with double flat sides so they can all be siamesed together.\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-055-SF\u003cbr\u003e300-055-DF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.325\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.560\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD 2:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.117\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e1.250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlats:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.660\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2JZ-GTE 85mm-87mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ca href=\"https:\/\/stmtuned.com\/collections\/darton-products\" style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562721218902,"sku":"DAR-300-055-SF\/DF (Set of 6)","price":1102.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/300-055-darton-2jz-supra-dry-sleeves.jpg?v=1749204136"},{"product_id":"300-038-darton-r35-gtr-dry-sleeves","title":"Darton Dry Sleeves for VR38DETT R35 GTR (300-038)","description":"Darton Dry Iron Sleeves for the VR38DETT R35 GTR replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.\u003cbr\u003e\u003cbr\u003eA \"Dry Sleeve\" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.\u003cbr\u003e\u003cbr\u003eDarton sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2009+ Nissan R35 GT-R VR38DETT\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(6) Sleeves\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-038\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.745\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.970\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD 2:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.968\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.112\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eVR38DETT 95.5mm to 96mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ca href=\"https:\/\/stmtuned.com\/collections\/darton-products\" style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562723021142,"sku":"DAR-300-038 (Set of 6)","price":1029.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/300-038-darton-r35-gtr-dry-sleeves-1.jpg?v=1749204183"},{"product_id":"darton-honda-acura-dry-sleeves","title":"Darton Dry Sleeves for Honda \u0026 Acura","description":"Darton Dry sleeves for the Honda and Acura engines replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.\u003cbr\u003e\u003cbr\u003eA \"Dry Sleeve\" means that the sleeve does not contain water\/ or coolant passges bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.\u003cbr\u003e\u003cbr\u003eDarton sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e\u003cbr\u003eA full set of 4 engine sleeves. Please choose your sleeves carefully in the purchase menu and review all information. If you are unsure, please discuss with your engine builder before purchase. Some options are available with or without the flange.\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/dartonsleeves.com\/tech-publications\/installation-manuals\/\" style=\"color: #afafaf; text-decoration: underline;\" target=\"blank\"\u003e Darton Sleeve Installation Guides\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\u003cspan style=\"font-size: 2em;\"\u003eDRY SLEEVES NO FLANGE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e D16\u003c\/span\u003e (No Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e200-010\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2.940\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.235\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.148\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.110\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B16\u003c\/span\u003e (No Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e200-012\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.465\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.143\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.860\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B18\u003c\/span\u003e (No Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e200-014\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.465\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.143\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.110\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e F22A\u003c\/span\u003e (No Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e200-016\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.330\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.640\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.155\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.520\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e ALL H22 or H23\u003c\/span\u003e (No Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e200-018\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.410\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.640\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.115\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.520\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\u003cspan style=\"font-size: 2em;\"\u003eDRY SLEEVES WITH FLANGE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e D16\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-010\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2.940\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.250\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.155\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.400\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e D17\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-011\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2.940\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.250\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.155\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.275\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B16\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-012\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.475\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.148\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.250\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B18\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-014\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.475\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.148\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e F22A\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-016\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.335\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.650\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.158\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e ALL H22 or H23\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-018\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.415\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.650\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.118\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e K20\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-019\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.370\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.650\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.140\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.200\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\" colspan=\"7\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e K24 \u0026amp; F20C\/F22C\u003c\/span\u003e (With Flange)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e300-020\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.410\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.650\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.120\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.800\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"5\" bgcolor=\"000000\"\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr\u003e \u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"D16 No Flange (200-010)","offer_id":50562723053910,"sku":"DAR-200-010 (Set of 4)","price":402.8,"currency_code":"USD","in_stock":true},{"title":"B16 No Flange (200-012)","offer_id":50562723086678,"sku":"DAR-200-012 (Set of 4)","price":402.8,"currency_code":"USD","in_stock":true},{"title":"B18 No Flange (200-014)","offer_id":50562723119446,"sku":"DAR-200-014 (Set of 4)","price":402.8,"currency_code":"USD","in_stock":true},{"title":"F22A No Flange (200-016)","offer_id":50562723152214,"sku":"DAR-200-016 (Set of 4)","price":402.8,"currency_code":"USD","in_stock":true},{"title":"H22\/H23 No Flange (200-018)","offer_id":50562723184982,"sku":"DAR-200-018 (Set of 4)","price":441.44,"currency_code":"USD","in_stock":true},{"title":"D16 With Flange (300-010)","offer_id":50562723217750,"sku":"DAR-300-010 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"D17 With Flange (300-011)","offer_id":50562723250518,"sku":"DAR-300-011 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"B16 With Flange (300-012)","offer_id":50562723283286,"sku":"DAR-300-012 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"B18 With Flange (300-014)","offer_id":50562723316054,"sku":"DAR-300-014 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"F22A With Flange (300-016)","offer_id":50562723348822,"sku":"DAR-300-016 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"H22\/H23 With Flange (300-018)","offer_id":50562723381590,"sku":"DAR-300-018 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"K20 With Flange (300-019)","offer_id":50562723414358,"sku":"DAR-300-019 (Set of 4)","price":460.76,"currency_code":"USD","in_stock":true},{"title":"K24 \u0026 F20C\/F22C With Flange (300-020)","offer_id":50562723447126,"sku":"DAR-300-020 (Set of 4)","price":538.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/darton-honda-acura-dry-sleeves.jpg?v=1749204195"},{"product_id":"darton-honda-acura-mid-wet-sleeves","title":"Darton MID Sleeves for Honda \u0026 Acura","description":"Darton MID series sleeve kits for the Honda and Acura engines feature the greatest cooling capacity of any system. Allows even greater boost without unusual cam profiles to scavenge exhaust heat (helps control detonation). Even larger bore capability is now possible!\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePurchase Includes:\u003c\/span\u003e\u003cbr\u003e A full set of engine sleeves (4 or 6). Please choose your sleeves carefully in the purchase menu and review all information. If you are unsure, please discuss with your engine builder before purchase.\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/dartonsleeves.com\/tech-publications\/installation-manuals\/\" style=\"color: #afafaf; text-decoration: underline;\" target=\"blank\"\u003e Darton Sleeve Installation Guides\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOAL:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e D16\u003c\/span\u003e (75mm to 78mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-100\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2.940\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.400\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.230\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.450\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.326\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B16 81mm\u003c\/span\u003e (81mm to 85mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-110-P\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.285\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.250\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B16 84mm\u003c\/span\u003e (84mm to 85mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-120-P\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.298\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.226\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.250\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B18 81mm\u003c\/span\u003e (81mm to 85mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-135-P\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.285\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B18 84mm\u003c\/span\u003e *DDI2017 Top Fuel Material* (84mm to 85mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-145-D\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.298\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.285\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e F22A\u003c\/span\u003e (85mm to 90mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-150\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.338\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.850\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.256\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.800\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.826\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e H22A\/A1\/A4\/H23\u003c\/span\u003e (87mm to 90mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-160-P\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.415\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.850\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.217\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.800\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.826\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B16 \u003c\/span\u003e *Drag Only* (86mm to 87mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-170\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.188\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.250\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e B18\u003c\/span\u003e *Drag Only* (86mm to 87mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-180\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.375\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.188\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e C30 \/ C32 NSX\u003c\/span\u003e (93mm to 94mm MAX)\u003cbr\u003e *C30 block cannot use stock 90mm bore pistons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-210\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.645\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.160\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2.570\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.900\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"000000\" height=\"5\"\u003e\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd colspan=\"7\" style=\"color: #ffffff;\"\u003e\n\u003cspan style=\"font-size: 1.5em;\"\u003e J35\u003c\/span\u003e (89mm to 90mm MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e400-230\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.490\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.970\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.230\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.475\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.400\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.950\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Improved block integral strength\u003cbr\u003e• Improved cooling\u003cbr\u003e• \"Wet sleeve\" replace-ability\u003cbr\u003e• Increased horsepower output potential\u003cbr\u003e• Superior oil and compression control\u003cbr\u003e• Street or strip application\u003cbr\u003e• Kits can be installed by your local machine shop\u003cbr\u003e• Full installation manual with every kit sale\u003cbr\u003e• High boost and horsepower potential · Superior cylinder sealing and ring wear\u003cbr\u003e• Bulletproof Darton ductile iron, 130,000 psi tensile strength\u003cbr\u003e\u003cbr\u003e \u003cspan style=\"color: #ff2a00;\"\u003eMore from Darton:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eMany production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of \"cast in sleeves\" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eDarton has engineered a superior solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for in-field replacement with what we call Modular Integrated Deck (MID). In addition, Darton designs' manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the \"Wet\" design.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call \"swirl coolant technology\". This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes. High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID design compensates for this high resident heat soak condition.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eIn the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised. Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton's \"MID\", swirl coolant technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall\/flange area.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e \u003ca href=\"https:\/\/stmtuned.com\/collections\/darton-products\" style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"D16 (400-100)","offer_id":50562723578198,"sku":"DAR-400-100","price":835.57,"currency_code":"USD","in_stock":true},{"title":"B16 81mm (400-110-P)","offer_id":50562723610966,"sku":"DAR-400-110-P","price":835.57,"currency_code":"USD","in_stock":true},{"title":"B16 84mm (400-120-P)","offer_id":50562723643734,"sku":"DAR-400-120-P","price":835.57,"currency_code":"USD","in_stock":true},{"title":"B18 81mm (400-135-P)","offer_id":50562723676502,"sku":"DAR-400-135-P","price":864.55,"currency_code":"USD","in_stock":true},{"title":"B18 84mm (400-145-D)","offer_id":50562723709270,"sku":"DAR-400-145-D","price":864.55,"currency_code":"USD","in_stock":true},{"title":"F22A (400-150)","offer_id":50562723742038,"sku":"DAR-400-150","price":864.55,"currency_code":"USD","in_stock":true},{"title":"H22A\/A1\/A4\/H23 (400-160-P)","offer_id":50562723774806,"sku":"DAR-400-160-P","price":864.55,"currency_code":"USD","in_stock":true},{"title":"B16 Drag Only (400-170)","offer_id":50562723807574,"sku":"DAR-400-170","price":835.57,"currency_code":"USD","in_stock":true},{"title":"B18 Drag Only (400-180)","offer_id":50562723840342,"sku":"DAR-400-180","price":835.57,"currency_code":"USD","in_stock":true},{"title":"C30\/C32 NSX (400-210)","offer_id":50562723873110,"sku":"DAR-400-210","price":1827.65,"currency_code":"USD","in_stock":true},{"title":"J35 (400-230)","offer_id":50562723905878,"sku":"DAR-400-230","price":1827.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/darton-honda-acura-mid-wet-sleeves-4.jpg?v=1749204198"},{"product_id":"800-890-darton-brz-frs-mid-sleeves","title":"Darton MID Sleeves for FA20 BRZ\/FRS (800-890)","description":"Darton MID series sleeve kit for the FA20D\/4U-GSE BRZ, FRS \u0026amp; 86 engines feature the greatest cooling capacity of any system. Allows even greater boost without unusual cam profiles to scavenge exhaust heat (helps control detonation). Even larger bore capability is now possible 86mm to 90mm MAX. Includes a full set of 4 sleeves.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003eSubaru FA20D \/ Toyota 4U-GSE\u003cbr\u003e 2013+ Subaru BRZ\u003cbr\u003e 2013+ Scion FR-S\u003cbr\u003e 2017+ Toyota 86\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(4) Sleeves\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Improved block integral strength\u003cbr\u003e• Improved cooling\u003cbr\u003e• \"Wet sleeve\" replace-ability\u003cbr\u003e• Increased horsepower output potential\u003cbr\u003e• Superior oil and compression control\u003cbr\u003e• Street or strip application\u003cbr\u003e• Kits can be installed by your local machine shop\u003cbr\u003e• Full installation manual with every kit sale\u003cbr\u003e• High boost and horsepower potential · Superior cylinder sealing and ring wear\u003cbr\u003e• Bulletproof Darton ductile iron, 130,000 psi tensile strength\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e800-890\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.312\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOAL:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.198\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4U-GSE\/FA20 86mm to 90mm MAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eMore from Darton:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eMany production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of \"cast in sleeves\" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eDarton has engineered a superior solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for in-field replacement with what we call Modular Integrated Deck (MID). In addition, Darton designs' manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the \"Wet\" design.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call \"swirl coolant technology\". This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes. High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID design compensates for this high resident heat soak condition.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eIn the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised. Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton's \"MID\", swirl coolant technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall\/flange area.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562723938646,"sku":"DAR-800-890","price":953.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/800-890-darton-brz-frs-mid-sleeves-1.jpg?v=1749204190"},{"product_id":"800-210-darton-nissan-vq35hr-370z-sleeves","title":"Darton MID Sleeves for VQ35HR 370Z Q50 (800-210)","description":"Darton MID series solid-deck wet sleeve kit for the VQ35HR engine feature the greatest cooling capacity of any system. Allows even greater boost without unusual cam profiles to scavenge exhaust heat (helps control detonation). Even larger bore capability is now possible 95mm To 100mm MAX. Includes a full set of 6 sleeves.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2007-2009 Nissan 350Z VQ35HR\u003cbr\u003e 2009-2020 Nissan 370Z VQ35HR\u003cbr\u003e 2007-2008 Infinity G35 VQ35HR\u003cbr\u003e 2008-2013 Infinity G37 VQ35HR\u003cbr\u003e 2014-2019 Infinity Q50 VQ35HR\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(6) Sleeves\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Improved block integral strength\u003cbr\u003e• Improved cooling\u003cbr\u003e• \"Wet sleeve\" replace-ability\u003cbr\u003e• Increased horsepower output potential\u003cbr\u003e• Superior oil and compression control\u003cbr\u003e• Street or strip application\u003cbr\u003e• Kits can be installed by your local machine shop\u003cbr\u003e• Full installation manual with every kit sale\u003cbr\u003e• High boost and horsepower potential · Superior cylinder sealing and ring wear\u003cbr\u003e• Bulletproof Darton ductile iron, 130,000 psi tensile strength\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e800-210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.720\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.365\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eVQ35HR 95mm - 100mm Max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eMore from Darton:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eMany production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of \"cast in sleeves\" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eDarton has engineered a superior solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for in-field replacement with what we call Modular Integrated Deck (MID). In addition, Darton designs' manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the \"Wet\" design.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call \"swirl coolant technology\". This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes. High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID design compensates for this high resident heat soak condition.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eIn the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised. Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton's \"MID\", swirl coolant technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall\/flange area.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562724299094,"sku":"DAR-800-210","price":1334.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/800-210-darton-nissan-vq35hr-370z-sleeves-1.jpg?v=1749204210"},{"product_id":"800-200-darton-nissan-vq35de-350z-sleeves","title":"Darton MID Sleeves for VQ35DE 350Z\/G35 (800-200)","description":"Darton MID series solid-deck wet sleeve kit for the VQ35DE 350Z and G35 engines feature the greatest cooling capacity of any system. Allows even greater boost without unusual cam profiles to scavenge exhaust heat (helps control detonation). Even larger bore capability is now possible 95mm To 100mm MAX. Includes a full set of 6 sleeves.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2003-2006 Nissan 350Z VQ35DE\u003cbr data-mce-fragment=\"1\"\u003e2003-2007 Infinity G35 VQ35DE\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(6) Sleeves\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Improved block integral strength\u003cbr\u003e• Improved cooling\u003cbr\u003e• \"Wet sleeve\" replace-ability\u003cbr\u003e• Increased horsepower output potential\u003cbr\u003e• Superior oil and compression control\u003cbr\u003e• Street or strip application\u003cbr\u003e• Kits can be installed by your local machine shop\u003cbr\u003e• Full installation manual with every kit sale\u003cbr\u003e• High boost and horsepower potential · Superior cylinder sealing and ring wear\u003cbr\u003e• Bulletproof Darton ductile iron, 130,000 psi tensile strength\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e800-200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.720\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.365\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eVQ35DE 95mm - 100mm Max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eMore from Darton:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eMany production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of \"cast in sleeves\" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eDarton has engineered a superior solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for in-field replacement with what we call Modular Integrated Deck (MID). In addition, Darton designs' manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the \"Wet\" design.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call \"swirl coolant technology\". This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes. High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID design compensates for this high resident heat soak condition.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eIn the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised. Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton's \"MID\", swirl coolant technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall\/flange area.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/collections\/darton-products\" style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562724331862,"sku":"DAR-800-200","price":1334.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/800-200-darton-nissan-vq35de-350z-sleeves-1.jpg?v=1749204210"},{"product_id":"300-031-3-darton-subaru-wrx-sti-ej25-sleeves","title":"Darton Seal Tight Sleeves for Subaru EJ25 (300-031-3D)","description":"Darton Dry Seal Tight sleeves for the EJ25 Subaru WRX and STi engines replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.\u003cbr\u003e\u003cbr\u003eA \"Dry Sleeve\" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.\u003cbr\u003e\u003cbr\u003eDarton cylinder head sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2006-2014 Subaru WRX EJ25\u003cbr\u003e2004-2020 Subaru STi EJ25\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(4) Sleeves\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e300-031-3D (aka \u003cmeta charset=\"utf-8\"\u003e300-031-3)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.890\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD 2:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eLength:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlats:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e2.223\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eEJ25 99.5mm to 102mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562724659542,"sku":"DAR-300-031-3D (SET OF 4)","price":608.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/300-031-3-darton-subaru-wrx-sti-ej25-sleeves.jpg?v=1749204212"},{"product_id":"300-050-darton-4g63-sleeves","title":"Darton Seal Tight Sleeves for 4G63 Evo DSM (300-050-SF\/DF)","description":"Darton Dry Seal Tight sleeves for 4G63T replace your factory cylinder liners with a stronger, more durable and longer lasting surface that can hold more power and may be bored further than stock.\u003cbr\u003e\u003cbr\u003eA \"Dry Sleeve\" means that the sleeve does not contain water or coolant passages bored through the top flange. This solid design provides a more rigid structure to prevent warping and sleeve expansion.\u003cbr\u003e\u003cbr\u003eDarton sleeves must be finished at the machine shop and honed to the exact specs of the pistons going into them.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003eMitsubishi 4G63\u003cbr\u003e1992-2006 Evolution I-IX\u003cbr\u003e1990-1999 Eclipse GST\/GSX\u003cbr\u003e1990-1998 Talon TSi\u003cbr\u003e1990-1994 Laser RS\u003cbr\u003e1991-1993 Galant VR4\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e4 Sleeves\u003cbr\u003e(2) SF = Single Flat (300-050-SF)\u003cbr\u003e(2) DF = Double Flat (300-050-DF)\u003cbr\u003e\u003cbr\u003eThe two sleeves for cylinder 1 \u0026amp; 4 are a \"SF\" meaning they have one side that is flat. Cylinder 2 \u0026amp; 3 in the center are a \"DF\" with double flat sides so they can all be siamesed together.\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003ePart Numbers:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan style=\"color: #ffffff;\"\u003e300-050-DF\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: #ffffff;\"\u003e300-050-SF\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eBore:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e3.338\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eO.D:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e3.480\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eO.D 2:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e3.470\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eWall:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e0.071\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eLength:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e5.875\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e0.132\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eFlange Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e3.729\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eFlats:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e3.658\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003eApplication:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #ffffff;\"\u003e4G63 85mm to 86mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50562724692310,"sku":"DAR-300-050-SF\/DF","price":552.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/300-050-darton-4g63-sleeves-1.jpg?v=1749204214"},{"product_id":"darton-r35-gtr-mid-cylinder-piston-sleeve-kit-95mm-100mm","title":"Darton MID Sleeves for VR38DETT R35 GTR (800-215)","description":"Darton 'MID' series solid-deck sleeve kit for the VR38DETT R35 GTR feature the greatest cooling capacity of any system. Allows even greater boost without unusual cam profiles to scavenge exhaust heat (helps control detonation). Even larger bore capability is now possible 95mm To 100mm MAX. Includes a full set of 6 sleeves.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2009+ Nissan R35 GT-R VR38DETT\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(6) Sleeves\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Improved block integral strength\u003cbr\u003e• Improved cooling\u003cbr\u003e• \"Wet sleeve\" replace-ability\u003cbr\u003e• Increased horsepower output potential\u003cbr\u003e• Superior oil and compression control\u003cbr\u003e• Street or strip application\u003cbr\u003e• Kits can be installed by your local machine shop\u003cbr\u003e• Full installation manual with every kit sale\u003cbr\u003e• High boost and horsepower potential · Superior cylinder sealing and ring wear\u003cbr\u003e• Bulletproof Darton ductile iron, 130,000 psi tensile strength\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e800-215\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOAL:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.060\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e95mm To 100mm MAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eMore from Darton:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eMany production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of \"cast in sleeves\" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eDarton has engineered a superior solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for in-field replacement with what we call Modular Integrated Deck (MID). In addition, Darton designs' manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the \"Wet\" design.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call \"swirl coolant technology\". This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes. High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID design compensates for this high resident heat soak condition.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eIn the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised. Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton's \"MID\", swirl coolant technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall\/flange area.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/collections\/darton-products\" style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50565163745622,"sku":"DAR-800-215","price":1516.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/800-215-darton-r35-gtr-sleeves-1.jpg?v=1749223688"},{"product_id":"darton-iron-mid-wet-sleeves-evo-x-4b11t","title":"Darton MID Sleeves for 4B11 Evo X (S800-160)","description":"Darton iron MID wet sleeves for the 4B11 Evo X come as a 86mm bore, and can be bored out to 90mm. Includes 4 sleeves with lube and orings as pictured.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2008-2015 Evolution X 4B11\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Improved block integral strength\u003cbr\u003e• Improved cooling\u003cbr\u003e• \"Wet sleeve\" replace-ability\u003cbr\u003e• Increased horsepower output potential\u003cbr\u003e• Superior oil and compression control\u003cbr\u003e• Street or strip application\u003cbr\u003e• Kits can be installed by your local machine shop\u003cbr\u003e• Full installation manual with every kit sale\u003cbr\u003e• High boost and horsepower potential · Superior cylinder sealing and ring wear\u003cbr\u003e• Bulletproof Darton ductile iron, 130,000 psi tensile strength\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003ePart Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e800-160\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eBore\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.370\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOD:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e3.850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eWall:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eOAL:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e5.475\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Thickness:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e0.400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eFlange Diameter:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e4.625\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eApplication:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e86mm to 90mm MAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Darton:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eMany production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of \"cast in sleeves\" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eDarton has engineered a superior solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for in-field replacement with what we call Modular Integrated Deck (MID). In addition, Darton designs' manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the \"Wet\" design.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eThe enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call \"swirl coolant technology\". This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes. High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID design compensates for this high resident heat soak condition.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eIn the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised. Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton's \"MID\", swirl coolant technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall\/flange area.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" data-mce-style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cbr\u003e \u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/darton-products\" data-mce-style=\"color: #afafaf;\" target=\"blank\"\u003e\u003cspan style=\"font-size: .8em;\" data-mce-style=\"font-size: .8em;\"\u003e See more Darton Sleeves Products\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Darton","offers":[{"title":"Default Title","offer_id":50565217583446,"sku":"DAR-800-160","price":843.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/800-160-darton-evo-x-4b11-wet-sleeves-1.jpg?v=1749224116"}],"url":"https:\/\/www.speed-addicts.com\/en\/collections\/engine-sleeves.oembed","provider":"Speed Addicts","version":"1.0","type":"link"}