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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.320" bore, .075" compressed thickness) is a multi-layer stainless steel gasket designed to provide a dependable combustion and coolant seal without sealants. Embossed, Viton-coated outer layers manage harsh environments and finishes while an uncoated stainless shim sets thickness. MLS construction resists corrosion, evens load distribution and reduces clamp load to limit distortion.
Cometic Chevrolet Mark-IV Big Block V8 .075in MLS Cylinder Head Gasket - 4.320in Bore
