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Cometic MLS head gasket for Chevrolet Gen‑1 Small Block V8 with a 4.200" bore and .040" compressed thickness with steam holes. It provides seal integrity for high‑output engines without additional sealants and fits aluminum and cast‑iron combinations. Constructed from embossed stainless steel layers with Viton‑coated outer faces and an uncoated center shim. The multilayer design rebounds, resists corrosion, reduces clamp load and helps distribute sealing load evenly around the bore.
Cometic Chevrolet Gen-1 Small Block V8 4.200in Bore .040in MLS Cylinder Head Gasket w/ Steam Holes
