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Cometic's .080" MLS cylinder head gasket for Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 features a 4.570" bore and multi-layer stainless construction with embossed, Viton-coated outer faces. Designed to seal high-output engines without sealants, it tolerates differential shearing between materials and resists corrosion. The adjustable shim center supports varied thickness needs for accurate sealing and reduced distortion.
Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .080in MLS Cylinder Head Gasket - 4.570in Bore
