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The Cometic MLS head gasket for Chevrolet Mark‑IV Big Block V8 (4.510in bore, .040in) features multiple embossed stainless steel layers with Viton-coated outer surfaces for heat-resistant sealing. A central uncoated shim layer lets thickness be customized while the layered steel construction provides strength, rebound and corrosion resistance. The design conforms load distribution across the sealing area, reducing required clamp load and limiting bore distortion without sealants.
Cometic Chevrolet Mark-IV Big Block V8 .040in MLS Cylinder Head Gasket - 4.510in Bore
