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This .051" Cometic MLS cylinder head gasket fits Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines with a 4.570" bore. Constructed from multiple embossed stainless layers with Viton-coated outer faces, it provides sealant-free sealing for high-output applications and mixed-material interfaces. The uncoated shim center allows thickness adjustments while the layered design improves load distribution and corrosion resistance.
Cometic Chevrolet Mark-IV - GM Gen-V/VI Big Block V8 .051in MLS Cylinder Head Gasket - 4.570in Bore
