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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.320" bore, .084" compressed thickness) is a multi-layer stainless steel gasket engineered for high-output applications. Embossed outer layers coated with Viton handle challenging sealing surfaces and temperatures while an uncoated stainless center shim establishes thickness. MLS construction rebounds, resists corrosion and evens load distribution to reduce clamp load and bore distortion.
Cometic Chevrolet Mark-IV Big Block V8 .084in MLS Cylinder Head Gasket - 4.320in Bore
