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Mr Gasket  |  SKU: 5912

Mr Gasket Ultra-Seal Header Gaskets - 5912

Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block. Round Ports, 2.15 Inch

Regular price $101.30 NZD + GST
Shipping calculated at checkout.
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.

Description

Fits 1965-1990 Chevrolet 396-454 Mark IV Big Block. Round Ports, 2.15 Inch

Part Number: 5912

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 and Benefits

• Has A Graphite Core W/ Steel Outer Layers
• Graphite Core Has Excellent Thermo-conductivity
• Coated With High Temp Silicone For Sealing
• Will Not (brindle ) Or Indent Aluminum Heads

Specifications

  • Specifications
    BrandMr. Gasket
    CategoryExhaust
    Collector Gaskets IncludedNo
    Emission Code5
    EngineChevrolet Big Block Mark IV
    Gasket LineUltra-Seal
    MaterialUltra-seal
    Port ShapeRound
    Port Size2.15
    Product TypeHeader Gaskets
    Thickness.062
    WarningCalifornia Proposition 65
    WarrantyManufacturer's Limited 90 Day Warranty
    Weight0.38

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