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Cometic exhaust manifold gaskets for Chevrolet Mark‑IV and GM Gen‑V/VI Big Block V8 (.064in) are engineered for modern high‑output engines with increased cylinder pressures and temperatures. These gaskets withstand mismatched head and manifold materials, compress to seal imperfect surfaces, resist blow‑through and corrosion, and maintain torque set to preserve sealing under demanding conditions.
Cometic Chevrolet Mark-IV GM Gen-V/VI Big Block V8 .064in AM Exhaust Manifold Gasket Set
