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The Cometic MLS cylinder head gasket for Chevrolet Mark‑IV Big Block V8 combines embossed stainless steel outer layers coated with Viton and a configurable uncoated stainless shim. Listed at nominal compressed thicknesses around 0.095" and a 4.320" bore, it provides reliable sealing for mixed-material head and block combinations without sealants, resisting shear and offering corrosion rebound under demanding loads.
Cometic Chevrolet Mark-IV Big Block V8 .095in MLS Cylinder Head Gasket - 4.320in Bore
