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Cometic MLS head gasket for Chevrolet Gen‑1 Small Block V8 with a 4.060" bore and .040" compressed thickness for 18° or 23° round‑bore heads. It seals high‑output engines without sealants and works with aluminum or cast‑iron blocks. The gasket uses multiple embossed stainless steel layers with Viton coating on the outer faces and an uncoated center shim. This multilayer design rebounds, resists corrosion, reduces clamp load and helps distribute sealing load evenly.
Cometic Chevy Small Block 4.060 inch Bore .040 inch MLS Head Gasket (18 or 23 Deg. Heads)
