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The Cometic copper exhaust manifold gasket for Chevrolet Mark-IV/GM Gen-V/VI Big Block V8 (.043" thick) uses multi-layer stainless steel construction with Viton-coated outer layers to resist corrosion and meet high-temperature demands. Designed for extreme cylinder pressures and for mixed head and manifold materials, it compresses to seal imperfect surfaces, resists burn-through and maintains torque set for reliable long-term sealing in exhaust applications.
Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .043in Copper Exhaust Manifold Gasket
