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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.320" bore, .047" compressed thickness) is a multi-layer stainless steel seal designed for demanding engines. Embossed outer layers coated with Viton tolerate varied sealing environments and finishes; the uncoated stainless center shim controls thickness. MLS construction resists corrosion, provides controlled rebound and reduces clamp load to limit bore distortion.
Cometic Chevrolet Mark-IV Big Block V8 .047in MLS Cylinder Head Gasket - 4.320in Bore
