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Cometic's MLS head gasket for Chevrolet Gen‑1 Small Block V8 offers solid sealing for performance and rebuild projects. It fits a 4.165 in bore and is nominally 0.066 in thick with a compressed operating thickness listed as 0.066 in, suitable for valve‑pocketed bores and steam hole setups. Made from multiple embossed stainless layers with Viton coating on the outer faces and an uncoated shim layer, it resists corrosion, conforms to surface variations, and reduces required clamp load to minimize bore distortion.
Cometic Chevy Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.165in Bore
