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Cometic MLS head gasket for GM Gen‑V/VI Big Block V8 with a 4.630‑inch bore and 0.053" compressed operating thickness. The multi‑layer stainless construction uses embossed, Viton‑coated outer faces and an uncoated stainless shim center for strength, rebound and corrosion resistance. It seals high‑output engines without sealants, conforms load across the sealing area and requires less clamp load to minimize bore distortion.
Cometic GM Gen-V/VI Big Block V8 .053in MLS Cylinder Head Gasket - 4.630in Bore
