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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.375in bore, .056in) consists of embossed stainless steel outer layers coated with Viton and an uncoated center shim to accommodate thickness needs. The multilayer steel design delivers strength, rebound and corrosion resistance while distributing clamp load evenly to reduce bore distortion. It’s intended for demanding sealing environments and seals without requiring extra sealants.
Cometic Chevrolet Mark-IV Big Block V8 .056in MLS Cylinder Head Gasket - 4.375in Bore
