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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.320" bore, .070" compressed thickness) is a multi-layer stainless steel sealing solution that requires no sealants. Embossed outer layers are Viton-coated for demanding sealing environments while an uncoated stainless center shim controls thickness. MLS construction rebounds, resists corrosion, accommodates mixed head/block materials and reduces clamp load to limit distortion.
Cometic Chevrolet Mark-IV Big Block V8 .070in MLS Cylinder Head Gasket - 4.320in Bore
