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Cometic MLS head gasket for Chevrolet Mark‑IV / GM Gen‑V/VI Big Block V8 with a 4.630in bore and 0.060" compressed thickness. Constructed from multiple embossed stainless steel layers with Viton-coated outer faces, the gasket resists corrosion, requires no sealants, and tolerates dissimilar head/block material interfaces. The multilayer design provides improved load distribution and reduced required clamp load for demanding, high‑output engines.
Cometic Brodix Chevrolet Big Duke / Brodie 4.63in Bore .060in MLS Head Gasket
