{"product_id":"pontiac-exhaust-gaskets","title":"Ultra-Seal Header Gaskets Fits 1963-1979 Pontiac 326-455 V8. Oval D-ports, 1.55 Inch x 1.94 Inch Mr Gasket","description":"\u003cp\u003e\u003cb\u003ePart #:\u003c\/b\u003e 5921\u003c\/p\u003e\u003cp\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.Has A Steel Core With Graphite FacingGraphite Facing Has Excellent Thermo-conductivityHigh Recovery Mat Allows For Better Seal RetentionCan Be Trimmed For Port ModificationsExpanded Steel Core For StabilityThese Gaskets Have Slotted End HolesDetails:Collector Gaskets Included: NoEmission Code: 5Gasket Line: Ultra-SealMaterial: Ultra-sealPort Shape: Oval \/ DPort Size: 1.46 x 1.93Warranty: Manufacturer's Limited 90 Day Warranty\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHas A Steel Core With Graphite Facing\u003c\/li\u003e\n\u003cli\u003eGraphite Facing Has Excellent Thermo-conductivity\u003c\/li\u003e\n\u003cli\u003eHigh Recovery Mat Allows For Better Seal Retention\u003c\/li\u003e\n\u003cli\u003eCan Be Trimmed For Port Modifications\u003c\/li\u003e\n\u003cli\u003eExpanded Steel Core For Stability\u003c\/li\u003e\n\u003cli\u003eThese Gaskets Have Slotted End Holes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eExhaust Manifold \/ Header Gasket - Ultra-Seal - 1.940 x 1.550 in Oval \/ D Port - Steel Core Laminate - Pontiac V8 - Pair\u003c\/p\u003e","brand":"Mr. Gasket","offers":[{"title":"Default Title","offer_id":51827675201848,"sku":"M00S 5921","price":239.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/horsepower-asset-522291-962984-square_b779d312-479a-4a8a-b521-70088a1360ea.webp?v=1774558007","url":"https:\/\/store.motormia.co\/products\/pontiac-exhaust-gaskets","provider":"MOTORMIA","version":"1.0","type":"link"}