{"product_id":"cometic-street-pro-top-end-kit-k20z3","title":"Cometic Street Pro Top End Kit for K20Z3 (86mm)","description":"\u003cul\u003e\n\u003cli\u003e86mm .030 in MLS head gasket \u003c\/li\u003e\n\u003cli\u003eViton-coated, heat resistant to 482°F \u003c\/li\u003e\n\u003cli\u003eFits K20Z3, RBC head bolt pattern \u003c\/li\u003e\n\u003cli\u003eIncludes intake, exhaust, and valve gaskets \u003c\/li\u003e\n\u003cli\u003eNo sealant or re-torque required \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 Street Pro Top End Gasket Kit for K20Z3 - Part #PRO2054T\u003c\/h3\u003e\n\u003cp\u003ePulling the head on an 8th gen Civic Si means a pile of one-time-use gaskets and seals, and sourcing them individually from Honda gets expensive fast. Cometic's Street Pro kit for the K20Z3 puts the whole top end reseal in one box, anchored by the same 86mm .030 MLS head gasket they sell as a standalone race part.\u003c\/p\u003e\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\u003cp\u003eThe head gasket is the reason to buy the kit: a 3-layer MLS with embossed, Viton-coated stainless outer layers over a stainless center shim, sealed dry with no re-torque and heat resistant to 482F. It clamps evenly across the deck, cuts bore distortion, and springs back through heat cycles instead of taking a set, which matters on an engine that lives above 8,000 rpm. Around it, Cometic packs the Street Pro line's standard top end contents for the application: intake gaskets with end seals, exhaust manifold gasket, valve cover gasket, thermostat housing gasket, valve stem seals, and throttle body gasket, all in Cometic's own materials rather than a grab bag of parts-store fiber.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead gasket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLS, 86mm bore, .030 in compressed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK20Z3 (RBC head bolt pattern)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead gasket coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eViton over stainless, heat resistant to 482F\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 on the head gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eWhat's In the Box\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMLS head gasket, 86mm x .030\u003c\/td\u003e\n\u003ctd\u003eStock bore K20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntake gaskets with end seals\u003c\/td\u003e\n\u003ctd\u003eIntake tract\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust manifold gasket\u003c\/td\u003e\n\u003ctd\u003eExhaust side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve cover gasket\u003c\/td\u003e\n\u003ctd\u003eCam cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermostat housing gasket\u003c\/td\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve stem seals\u003c\/td\u003e\n\u003ctd\u003eIntake and exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThrottle body gasket\u003c\/td\u003e\n\u003ctd\u003eAs needed for the application\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\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Mugen Si\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eK20Z3 only. The head gasket in this kit fits the RBC head bolt pattern at the stock 86mm bore.\u003c\/p\u003e\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\u003cp\u003eThe 86mm head gasket is for a stock-bore block. If your K20Z3 has been bored to 87mm, buy the rest of the kit for the soft parts and swap in Cometic's C4562-030 87mm head gasket, which we sell separately, or just source the gaskets individually. Same rule as any RBC-pattern gasket: on a K20\/K24 hybrid running the 06-11 Si head, this kit's head gasket is the correct pattern. Fresh head bolts or a stud kit and a torque job with ARP Ultra Torque finish the job properly.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\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\u003e2006-2011\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Si\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic Mugen Si\u003c\/td\u003e\n\u003ctd\u003eK20Z3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eK20Z3 only. The head gasket in this kit fits the RBC head bolt pattern at the stock 86mm bore.\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\u003eHead gasket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMLS, 86mm bore, .030 in compressed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK20Z3 (RBC head bolt pattern)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead gasket coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eViton over stainless, heat resistant to 482F\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 on the head gasket\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":47311422554146,"sku":"COG-PRO2054T","price":222.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/COG-PRO2054T_vr39.jpg?v=1788705196","url":"https:\/\/www.hybrid-racing.com\/products\/cometic-street-pro-top-end-kit-k20z3","provider":"Hybrid Racing","version":"1.0","type":"link"}