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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.630" bore, .140" compressed thickness) provides a durable, multi-layer steel seal for demanding engines. Embossed outer layers use AMP coating with an uncoated stainless center shim to set thickness. The MLS construction offers corrosion resistance, controlled rebound, reduced clamp load and improved load distribution across the sealing area without requiring sealants.
Cometic Chevrolet Mark-IV Big Block V8 .140in MLS Cylinder Head Gasket - 4.630in Bore
