{"product_id":"cometic-89mm-k-series-mls-head-gasket-c4313-040","title":"Cometic 89mm K-Series MLS Head Gasket C4313 - Sleeved","description":"\u003cul\u003e\n\u003cli\u003e89mm 3-layer stainless MLS construction \u003c\/li\u003e\n\u003cli\u003eViton coating withstands 250°C \u003c\/li\u003e\n\u003cli\u003eCompressed thickness .040 in \u003c\/li\u003e\n\u003cli\u003eK20\/K24 sleeved to 89mm \u003c\/li\u003e\n\u003cli\u003eSurface finish 50 RA or smoother \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#InstallGuide\"\u003eInstall Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eCometic 89mm K-Series MLS Head Gasket - Part #C4313-040\u003c\/h3\u003e\n\u003cp\u003eAn 89mm K-series is a sleeved block, full stop, and a sleeved block needs a gasket whose fire ring lands on the sleeve and not the parent bore. Cometic's C4313-040 is the 89mm 3-layer MLS in .040 compressed, the thickness most big-bore K builds land on once the deck has been cut and the piston has been chosen.\u003c\/p\u003e\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\u003cp\u003eCometic's MLS gasket is three layers of stainless steel: two embossed outer layers coated in a Viton fluoroelastomer that seals against the block and head, and a center shim that sets the compressed thickness. The Viton handles 250 C, the stainless springs back after every heat cycle instead of taking a set, and the layered design tolerates the slight movement between an aluminum head and block that kills a composite gasket. It's the same construction Honda uses from the factory, done with more clamp margin.\u003c\/p\u003e\n\u003cp\u003eThickness is how you set compression and piston-to-valve clearance after a deck cut or a piston change. Thicker gasket, lower static compression, more clearance; thinner, the reverse. Cometic sells the same gasket in several thicknesses for that reason, and the bore has to clear your actual cylinder bore, not the one the engine left the factory with.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC4313-040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLS, 3-layer stainless with Viton coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e89mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressed thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK20 or K24 sleeved to 89mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 head gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006 Acura RSX Base, Type-S\u003c\/td\u003e\n\u003ctd\u003eK20A3, K20A2, K20Z1 (bored)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005 Honda Civic Si\u003c\/td\u003e\n\u003ctd\u003eK20A3 (bored)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2008 Acura TSX\u003c\/td\u003e\n\u003ctd\u003eK24A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2007 Honda Accord 2.4\u003c\/td\u003e\n\u003ctd\u003eK24A4, K24A8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2009 Honda CR-V\u003c\/td\u003e\n\u003ctd\u003eK24A1, K24Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2011 Honda Element\u003c\/td\u003e\n\u003ctd\u003eK24A4, K24A8, K24Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eK-swaps\u003c\/td\u003e\n\u003ctd\u003eK20 or K24 sleeved to 89mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e89mm is sleeve territory on any K-series. This gasket is for a Darton or Golden Eagle sleeved block; it will not seal on a stock or overbored factory cylinder.\u003c\/p\u003e\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\u003cp\u003eSurface finish matters more than anything else. Cometic wants the block and head decked to 50 RA or smoother; an MLS gasket on a rough or corroded deck will weep coolant no matter how it's torqued. Have the head checked for flatness and skimmed if it's been overheated.\u003c\/p\u003e\n\u003cp\u003eConfirm the sleeve OD and the finished bore with your machinist before you order. The fire ring needs full support all the way around; a gasket that overhangs a sleeve edge by even a half millimeter will push out under boost.\u003c\/p\u003e\n\u003cp\u003eOnly one thickness is stocked here. If the compression math calls for something else at 89mm, ask us; Cometic makes the C4313 in other thicknesses to order.\u003c\/p\u003e\n\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2006 Acura RSX Base, Type-S\u003c\/td\u003e\n\u003ctd\u003eK20A3, K20A2, K20Z1 (bored)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2005 Honda Civic Si\u003c\/td\u003e\n\u003ctd\u003eK20A3 (bored)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2008 Acura TSX\u003c\/td\u003e\n\u003ctd\u003eK24A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2007 Honda Accord 2.4\u003c\/td\u003e\n\u003ctd\u003eK24A4, K24A8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002-2009 Honda CR-V\u003c\/td\u003e\n\u003ctd\u003eK24A1, K24Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2011 Honda Element\u003c\/td\u003e\n\u003ctd\u003eK24A4, K24A8, K24Z1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eK-swaps\u003c\/td\u003e\n\u003ctd\u003eK20 or K24 sleeved to 89mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e89mm is sleeve territory on any K-series. This gasket is for a Darton or Golden Eagle sleeved block; it will not seal on a stock or overbored factory cylinder.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC4313-040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLS, 3-layer stainless with Viton coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e89mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompressed thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK20 or K24 sleeved to 89mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 head gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackaged size \/ weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16.9 x 7.9 x 1.3 in, 0.8 lb (per PIM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003cli id=\"InstallGuide\"\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n","brand":"Cometic Gasket","offers":[{"title":"Default Title","offer_id":46629124767778,"sku":"COG-C4313-040","price":96.52,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/g-0c909e10-2f48-49e0-bf6f-13c665037d0d-800_b48f8b59-72e9-45db-a087-062460c943f9.jpg?v=1787944364","url":"https:\/\/www.hybrid-racing.com\/products\/cometic-89mm-k-series-mls-head-gasket-c4313-040","provider":"Hybrid Racing","version":"1.0","type":"link"}