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Cometic MLS head gasket for Chevrolet Gen‑1 Small Block V8 with a 4.200" bore and .051" compressed thickness with steam holes. It seals high‑output engines without sealants and suits aluminum‑to‑aluminum or aluminum‑to‑cast‑iron applications. The gasket combines multiple embossed stainless steel layers with Viton coating on both outer faces and an uncoated shim center. This multilayer construction rebounds under load, resists corrosion and evens sealing pressure while lowering required clamp load.
Cometic Chevy Gen-1 Small Block V8 4.200in Bore 18/23 Degree Head .051in MLS Cylinder Head Gasket
