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1963-1976 Chevy Big Block Chevy Exhaust Header Gaskets

Item EK-40-399075-1
39 Reviews of Edelbrock
Our Price

$33.95

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      Product Information

      Features, Description, Q&A

      Features

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      • Designed For 1965-90 Big-Block Chevy Mark IV 396-402-427-454 V8 Engines
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      • Features A 1.940 Inch Round Port Size
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      • Made Of EnCore HTX-900 High-Density Non-Asbestos Fiber/Metal Core Composite
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      • Constructed With Two Graphite Coated, Heat Resistant Fiber Blended Sheets
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      • Sheets Are Mechanically And Chemically Fused To An Expanded Steel Core
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      • Provides High Heat Resistance And Excellent Load Retention
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      • Offers Superior Sealing Performance On Exhaust Manifold And Header Applications
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      • Includes A 50 Percent Recovery Rate Allowing For Gasket Expansion Under Proper Torque
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      • Two-Piece Configuration With Six Bolt Holes
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      • Thickness Of 0.0625 Inches
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      • Color Is Black
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      • Contains Lead, Subject To California Prop 65 Warning
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      • 12-Month Warranty Against Manufacturing Defects
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      • Fits Big-Block Chevy Mark IV Engines From 1965 Through 1990 With 396-402-427-454 V8 Displacements
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      Description

      Exhaust Manifold Gasket Set. The 1965-1990 Big-Block Chevy Mark IV Exhaust Manifold Gasket Set provides a reliable seal between the exhaust manifold and engine block to prevent exhaust leaks. It enhances engine performance, protects against heat damage, and helps maintain proper exhaust flow while reducing engine noise. This gasket set is essential for improving durability and ensuring optimal exhaust system operation.

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      Construction and Appearance. Manufactured from EnCore HTX-900 material, this gasket features a high-density, non-asbestos fiber and metal core composite. It is composed of two graphite-coated, heat-resistant fiber blended sheets, mechanically and chemically fused to an expanded steel core. The result is a durable black gasket designed to withstand high exhaust temperatures with excellent sealing capabilities.

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      Installation. Designed for direct fitment on existing exhaust manifold bolt patterns, this gasket set requires no drilling or modification during installation. Proper torque application is recommended to maintain sealing integrity and to allow the gasket's 50% recovery feature to function optimally.

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      Warranty. Backed by a 12-month warranty covering manufacturing defects.
      _x000D_Application. Specifically made to fit 1965-1990 Big-Block Chevy Mark IV 396-402-427-454 V8 engines for a precise, no-modification fit.

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

      4.7

      Reviews of Edelbrock Classic Exhaust Products (39)

      Questions & Answers

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