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Mr. Gasket Ultra-Seal Header Gaskets

Fits 1963-1979 Pontiac 326-455 V8. Oval/D-ports, 1.55 Inch x 1.94 Inch

Part # 5921 Be the first to write a review

Mr. Gasket Ultra-Seal Header Gaskets

In Stock
Free Shipping on orders over $150*
$35.82
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
Manufactured 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.

Features:

  • Has A Steel Core With Graphite Facing
  • Graphite Facing Has Excellent Thermo-conductivity
  • High Recovery Mat Allows For Better Seal Retention
  • Can Be Trimmed For Port Modifications
  • Expanded Steel Core For Stability
  • These Gaskets Have Slotted End Holes

About Mr. Gasket

Explore Mr. Gasket's range of performance auto parts for engines, exhaust systems, and more at our official retailer, Holley.com!

Brand Mr. Gasket
Collector Gaskets IncludedNo
Emission Code5
EnginePontiac V8
Gasket LineUltra-Seal
MaterialUltra-seal
Port ShapeOval / D
Port Size1.46" x 1.93"
Product TypeHeader Gaskets
Thickness.062"
WarrantyLimited 90 Day Warranty
Weight0.3800
UPC084041059210
Part Number5921
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Limited 90 Day Warranty: See Details
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    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.