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1965-1990 Mr Header Gaskets Chevrolet 396/454 Round Ports 1.85 Inch x 1.90 Inch

Item EK-61-878111-1
38 Reviews of Mr. Gasket
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$44.39

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      Product Information

      Features, Description, Q&A

      Features

      • Fits 1965-1990 Chevrolet 396, 402, 427, 454 Gen IV Big Block with Round Ports Up to 1.85 Inch x 1.90 Inch
      • Round Ports, 1.85 Inch x 1.90 Inch
      • Manufactured From High-Temperature Acrylic Blend Exhaust Material
      • Provides Excellent Sealing and Durability
      • Precision Die-Cut for an Excellent Fit
      • Can Be Trimmed If Necessary for Modified Port Applications
      • Suitable for Original Equipment Replacement, High-Performance Street, Drag Race, and Oval Track Use
      • Thickness of 0.062 Inch
      • Manufacturer’s Limited 90-Day Warranty
      • Emission Code 5

      Description

      Performance Header Gaskets. The 1965-1990 Chevrolet big block header gaskets provide a reliable seal between the exhaust headers and cylinder head, preventing exhaust leaks and ensuring optimal engine performance. These gaskets are designed for high-performance applications including street, drag racing, and oval track racing, making them essential for enhancing power and durability in Chevrolet big block engines.

      Construction and Appearance. Made from a heavy-duty, high-temperature acrylic blend material, these gaskets are 0.062 inches thick and feature precision die-cut ports for excellent fitment. The acrylic binder offers durability and high-temperature resistance, providing a reliable seal even under extreme operating conditions.

      Installation. Installation is straightforward with no need for drilling modifications. The gaskets can be trimmed if port modifications are necessary, allowing for a precise fit in customized applications.

      Warranty. Comes with a manufacturer’s limited 90-day warranty covering workmanship and material defects.

      Application. Designed specifically to fit Chevrolet 396, 402, 427, and 454 Gen IV big block engines with round ports measuring up to 1.85 by 1.90 inches, covering models from 1965 through 1990.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.5

      Reviews of Mr. Gasket Classic Exhaust Products (38)

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