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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.375in bore, .062in) features embossed stainless steel outer layers coated with Viton and a variable uncoated shim center for tailored thickness. The multilayer steel construction provides strength, rebound and corrosion resistance while conforming load distribution across the sealing area. That reduces clamp requirements and bore distortion, delivering dependable combustion sealing without added sealants.
Cometic Chevrolet Mark-IV Big Block V8 .062in MLS Cylinder Head Gasket - 4.375in Bore
