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Cometic MLS head gasket for GM Gen‑V/VI Big Block V8 with a 4.630‑inch bore and 0.120" compressed operating thickness. Multiple stainless steel layers include embossed, Viton‑coated outer faces for heat‑resistant sealing and corrosion resistance. The center uncoated shim can be varied to meet thickness needs; the MLS design seals high‑output engines without sealants while distributing load to reduce clamp stress and bore distortion.
Cometic GM Gen-V/VI Big Block V8 .120in MLS Cylinder Head Gasket - 4.630in Bore
