{"product_id":"cometic-mls-5-head-gasket-b-series-vtec-81mm-080","title":"Cometic MLS-5 Head Gasket for B16 B17 B18C (81mm .080)","description":"\u003cul\u003e\n\u003cli\u003e81mm bore, fits stock B16\/B18C \u003c\/li\u003e\n\u003cli\u003e.080 in compressed thickness, 2mm \u003c\/li\u003e\n\u003cli\u003eFive-layer stainless steel construction \u003c\/li\u003e\n\u003cli\u003eViton coating, heat resistant to 482°F \u003c\/li\u003e\n\u003cli\u003eNo sealant or re-torque needed \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 MLS-5 Head Gasket for B-Series VTEC - Part #C4231-080\u003c\/h3\u003e\n\u003cp\u003eThis is not the gasket for a stock rebuild. At .080 inch thick, right around 2mm, this is the gasket you reach for when a boosted B-series needs its static compression pulled down, or when the pistons sit proud of the deck and the head needs room to live. If that describes your build, this one part number solves two problems at once.\u003c\/p\u003e\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\u003cp\u003eCometic builds the C4231-080 as a five-layer MLS: embossed Viton-coated stainless outer layers around stacked stainless center shims that make up the extra thickness. The extra layers are what let a gasket this thick still seal like a thin one, since each stainless layer springs back with every heat cycle and the embossments keep clamp load even across the deck. The Viton coating is heat resistant to 482F, no sealant is needed, and no re-torque is required after installation. A thicker gasket moves the head away from the block, which drops static compression and opens up piston-to-head clearance, exactly what a turbo build on stock-style pistons or a block with pistons popping out of the deck needs.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLS-5, five-layer stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81mm (stock B16\/B17\/B18C bore)\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.080 in (approx. 2mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter layer coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eViton, heat resistant to 482F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB16A \/ B16A2 \/ B16A3 \/ B16B \/ B17A1 \/ B18C \/ B18C1 \/ B18C5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSealant \/ re-torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone required\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\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\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\u003e1999-2000\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003eB16A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1994-1997\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic del Sol VTEC\u003c\/td\u003e\n\u003ctd\u003eB16A3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1992-2001\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eIntegra GS-R\u003c\/td\u003e\n\u003ctd\u003eB17A1, B18C1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2001\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eIntegra Type R\u003c\/td\u003e\n\u003ctd\u003eB18C5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eCovers the DOHC VTEC B-series family at the stock 81mm bore, including JDM B16A, B16B, and B18C variants. Non-VTEC B18A\/B18B engines use a different gasket.\u003c\/p\u003e\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\u003cp\u003eDo the math before you order. Going from a stock-thickness gasket to .080 lowers compression and widens quench, which is the point on a high-boost build but works against a naturally aspirated one. If the head is coming off for a normal refresh, Cometic's .030 versions of this same gasket family are the right call, and we can get any of them. The 81mm bore matches a stock block; if the engine has been bored, size up the fire ring accordingly. Run head studs with a gasket this thick, torque them with ARP Ultra Torque, and check valvetrain geometry since the head now sits about .050 higher than stock.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\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\u003e1999-2000\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003eB16A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1994-1997\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic del Sol VTEC\u003c\/td\u003e\n\u003ctd\u003eB16A3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1992-2001\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eIntegra GS-R\u003c\/td\u003e\n\u003ctd\u003eB17A1, B18C1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997-2001\u003c\/td\u003e\n\u003ctd\u003eAcura\u003c\/td\u003e\n\u003ctd\u003eIntegra Type R\u003c\/td\u003e\n\u003ctd\u003eB18C5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eCovers the DOHC VTEC B-series family at the stock 81mm bore, including JDM B16A, B16B, and B18C variants. Non-VTEC B18A\/B18B engines use a different gasket.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLS-5, five-layer stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81mm (stock B16\/B17\/B18C bore)\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.080 in (approx. 2mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter layer coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eViton, heat resistant to 482F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB16A \/ B16A2 \/ B16A3 \/ B16B \/ B17A1 \/ B18C \/ B18C1 \/ B18C5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSealant \/ re-torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone required\u003c\/td\u003e\n\u003c\/tr\u003e\n\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":47286102491170,"sku":"COG-C4231-080","price":133.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/17588968.jpg?v=1788694581","url":"https:\/\/www.hybrid-racing.com\/products\/cometic-mls-5-head-gasket-b-series-vtec-81mm-080","provider":"Hybrid Racing","version":"1.0","type":"link"}