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1965-1990 Chevrolet Big Block Mr. Gasket Cooper Header Gaskets Round Port
Item EK-61-878166-1
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$66.50
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Product Information
Features, Description, Q&A
Features
- Fits 1965-1990 Chevrolet 396-454 Big Block With Round Ports
- Manufactured From “Dead Soft” Solid .043" Thick Copper Material
- .051" Embossment Around Each Exhaust Port To Seal Irregular Surfaces
- Total Gasket Thickness .094"
- Provides Excellent Sealing And Durability
- Conforms To And Seals Minor Surface Irregularities
- For High Performance Street, Drag Race, Oval Track, And Turbocharged Extreme Heat Applications
- Legal For Sale Or Use On Emissions Controlled Vehicles, Uncontrolled Vehicles, And Racing Use Only Vehicles
- Manufacturer's Limited 90 Day Warranty
Description
High Performance Header Gaskets. The Mr. Gasket 1965-1990 Big Block Header Gaskets are designed to provide a reliable seal between the exhaust header and the cylinder head. These gaskets ensure proper exhaust sealing, preventing leaks that can affect engine performance and efficiency. They are ideal for racing and high-performance applications where durability and heat resistance are critical.
Construction and Appearance. Constructed from “Dead Soft” solid copper material, these gaskets feature a .043" thickness with a .051" embossment around each port to tightly seal uneven surfaces. The total gasket thickness measures .094" to ensure durability and excellent sealing performance under extreme heat and pressure, typical of turbocharged and racing environments.
Installation. Installation is straightforward with no additional drilling required, suitable for professional mechanics and experienced enthusiasts. When installed properly, these gaskets provide a long-lasting, reusable seal across various high-output engine configurations.
Warranty. These gaskets come with a manufacturer's limited 90-day warranty.
Application. Fits 1965-1990 Chevrolet 396-454 Big Block engines equipped with round port headers, suitable for stock heads unless otherwise indicated.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
4.5
Reviews of Mr. Gasket Classic Exhaust Products (26)
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