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Cometic's MLS head gasket for Chevrolet Gen‑1 Small Block V8 is engineered for reliable sealing in rebuilt engines. It fits a 4.200 in bore with a nominal 0.023 in thickness and includes valve pocketing and steam holes for practical OE‑style fitment. Made from multiple embossed stainless layers with Viton coating on the outer faces and an uncoated shim center, the gasket rebounds for corrosion resistance, evens load distribution, and lowers required clamp load to help prevent bore distortion.
Cometic Chevy Gen-1 Small Block V8 .023in MLS Cylinder Head Gasket - 4.200in Bore
