{"product_id":"cometic-chrysler-gen-2-hemi-040in-mls-cylinder-head-gasket-4-375in-bore","title":"Cometic Chrysler Gen-2 Hemi .040in MLS Cylinder Head Gasket - 4.375in Bore","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e C5446-040 | \u003cstrong\u003eUPC:\u003c\/strong\u003e 191070068707\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eCometic Chrysler Gen-2 Hemi .040in MLS Cylinder Head Gasket - 4.375in Bore for 1966-1971 Dodge Plymouth\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eUpgrade your 1966-1971 Dodge and Plymouth Gen-2 Hemi engine with the Cometic C5446-040 MLS cylinder head gasket featuring a 4.375in bore and 0.040in compressed thickness. This gasket delivers reliable sealing for high-output engines in models like Charger, Challenger, Coronet, Road Runner, GTX, and more. Engineered for aluminum heads on aluminum or cast iron blocks, it handles extreme pressures and temperatures without sealants.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Layer Steel Construction:\u003c\/strong\u003e Multiple embossed stainless steel layers provide strength to rebound from distortion and resist corrosion in demanding conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton Rubber Coating:\u003c\/strong\u003e Outer layers coated on both sides with heat-resistant Viton up to 482 F, ensuring durability across harsh sealing environments and surface finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.040in Compressed Thickness:\u003c\/strong\u003e Precise operating thickness maintains optimal compression for high-performance builds without additional sealants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.375in Bore Compatibility:\u003c\/strong\u003e Designed specifically for Gen-2 Hemi engines, accommodating 426 Hemi applications in classic Mopar muscle cars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShear Force Resistance:\u003c\/strong\u003e Withstands forces between dissimilar metals like aluminum heads and cast iron blocks for leak-free performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires clean, flat cylinder head and block surfaces for proper sealing.\u003c\/li\u003e\n\u003cli\u003eStore in a dry environment to preserve Viton coating integrity.\u003c\/li\u003e\n\u003cli\u003eShips in protective packaging to prevent damage during transit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eTorque head bolts to manufacturer specifications in sequence.\u003c\/li\u003e\n\u003cli\u003eCompatible with stock or aftermarket Gen-2 Hemi cylinder heads. no additional hardware needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1967\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eSatellite\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eSuperbird\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1970\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eDeluxe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1970\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eR\/T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1968-1970\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eSuper Bee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1968-1969\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBarracuda\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBarracuda\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBarracuda\u003c\/td\u003e\n\u003ctd\u003eGran Coupe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1967\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBelvedere\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1969\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBelvedere\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1969\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBelvedere\u003c\/td\u003e\n\u003ctd\u003eSatellite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1967\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eBelvedere II\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970-1971\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eCuda\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eFury\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1971\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eGTX\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1968-1971\u003c\/td\u003e\n\u003ctd\u003ePlymouth\u003c\/td\u003e\n\u003ctd\u003eRoad Runner\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970-1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eChallenger\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970-1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eChallenger\u003c\/td\u003e\n\u003ctd\u003eR\/T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1969-1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1969\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eDaytona\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1967-1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eR\/T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1969\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eSpecial Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCharger\u003c\/td\u003e\n\u003ctd\u003eSuper Bee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1970\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003e440\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966-1970\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1966\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1970-1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eBrougham\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eCrestwood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1971\u003c\/td\u003e\n\u003ctd\u003eDodge\u003c\/td\u003e\n\u003ctd\u003eCoronet\u003c\/td\u003e\n\u003ctd\u003eCustom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Cometic?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTrusted by racers and builders for proven sealing in high-horsepower Hemi engines.\u003c\/li\u003e\n\u003cli\u003eMLS design handles extreme boost and compression ratios reliably.\u003c\/li\u003e\n\u003cli\u003ePrecision manufacturing ensures exact fit for Gen-2 Hemi bores and thicknesses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this gasket fit 426 Gen-2 Hemi engines in 1966-1971 Mopar cars?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, C5446-040 matches 4.375in bore Gen-2 Hemi applications across Dodge Charger, Challenger, Coronet, Plymouth Road Runner, GTX, Barracuda, and listed models.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What materials are used in this head gasket?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Embossed stainless steel layers with Viton fluorocarbon rubber coating on outer layers and uncoated center shim for varied thickness options.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is sealant required during installation?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e No, MLS gaskets seal directly. clean surfaces thoroughly and torque to spec for best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Protective box 10 x 10 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.80 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cometic Gasket","offers":[{"title":"Default Title","offer_id":43979906285647,"sku":"CGSC5446-040","price":96.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/cometic-chrysler-gen-2-hemi-_040in-mls-cylinder-head-gasket-4_375in-bore-cometic-gasket.jpg?v=1767423930","url":"https:\/\/www.blackopsautoworks.com\/products\/cometic-chrysler-gen-2-hemi-040in-mls-cylinder-head-gasket-4-375in-bore","provider":"Black Ops Auto Works","version":"1.0","type":"link"}