
The Cometic MLS cylinder head gasket for Chevrolet Mark-IV Big Block V8 features multiple embossed stainless steel layers with Viton-coated outer faces and an uncoated stainless center shim. With a compressed operating thickness of 0.045in and a 4.630in bore, the MLS construction provides rebound and corrosion resistance, accommodating aluminum-to-aluminum or aluminum-to-iron head applications without sealants.
Cometic Chevrolet Mark-IV Big Block V8 4.630in Bore .045in MLS Cylinder Head Gasket