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Cometic MLS head gasket engineered for Chevrolet Mark‑IV GM Gen‑V/VI big block V8 applications, .098in compressed thickness and a 4.630in bore. The multi‑layer steel construction uses embossed outer layers coated with Viton for heat and chemical resistance, plus an uncoated stainless shim layer to tailor thickness. MLS design offers strong sealing across mixed head/block materials without the need for sealants.
Cometic Chevy Mark-IV GM Gen-V/VI BB 4.630in Bore .098in MLS Head Gasket
