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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.320" bore, .054" compressed thickness) is a multi-layer stainless steel gasket that provides dependable sealing for high-output engines. Outer embossed layers use AMP and Viton-style coating for harsh environments while an uncoated stainless center shim sets compressed thickness. MLS construction improves rebound, corrosion resistance and load distribution without sealants.
Cometic Chevrolet Mark-IV Big Block V8 .054in MLS Cylinder Head Gasket - 4.320in Bore
