{"product_id":"mr-gasket-5912-ultra-seal-header-gaskets","title":"Mr. Gasket 5912  Ultra-Seal Header Gaskets","description":"\u003cp\u003e\r\nManufactured from high-temperature steel core\/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.\r\n\u003c\/p\u003e\r\n\u003cp\u003e\r\n\u003c\/p\u003e\u003ch3\u003e Specifications: \u003c\/h3\u003e\r\n\r\n\u003ctable border=\"0\" class=\"descr-table\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_DES\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eMr. Gasket Ultra-Seal Header Gaskets\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_EXT\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eFits 1965-1990 Chevrolet 396-454 Mark IV Big Block. Round Ports, 2.15 Inch\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_INV\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eU\/S EXH GSKT BB CHEV\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_MKT\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eManufactured from high-temperature steel core\/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_FAB\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eHas A Graphite Core W\/ Steel Outer Layers\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_FAB\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eGraphite Core Has Excellent Thermo-conductivity\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_FAB\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eCoated With High Temp Silicone For Sealing\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_FAB\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eWill Not (brindle ) Or Indent Aluminum Heads\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eDescription_KEY\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eexhaust gasket; big block Chevy; Mr. Gasket; Ultra-Seal; round port; BBC; Chevelle; Camaro; Nova; Corvette; Chevy II; GM; header gasket\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eMaterial\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eUltra-seal\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eBrand\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eMr. Gasket\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eProduct Type\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eHeader Gaskets\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eWarranty\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eLimited 90 Day Warranty\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eWeight\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e0.3800\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eCollector Gaskets Included\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eNo\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eEmission Code\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e5\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eEngine\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eChevrolet Big Block Mark IV\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eGasket Line\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eUltra-Seal\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003ePort Shape\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eRound\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003ePort Size\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e2.15\"\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eThickness\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e.062\"\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eLength\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e0.4500\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eWidth\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e3.9500\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eHeight\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e22.8500\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr style=\"height: 19px;\"\u003e\r\n\u003ctd style=\"height: 19px;\"\u003eWeight\u003c\/td\u003e\r\n\u003ctd style=\"height: 19px;\"\u003e0.3600\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e","brand":"Mr. Gasket","offers":[{"title":"Default Title","offer_id":47964399894741,"sku":"ds_BCZG_5912","price":67.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/8999\/9829\/files\/Ultra-Seal-Header-Gaskets_9f9c7e6f-f9ae-4679-87c2-0e0ed8568dad.jpg?v=1718287645","url":"https:\/\/shdp.ca\/products\/mr-gasket-5912-ultra-seal-header-gaskets","provider":"SHDP Truck \u0026 Auto","version":"1.0","type":"link"}