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Cometic's MLS head gasket for Chevrolet Gen‑1 Small Block V8 provides reliable sealing in high‑output Chevy engines. It fits a 4.165 in bore and is offered in a nominal 0.070 in thickness with a compressed operating thickness of 0.036 in, eliminating the need for sealants in many rebuilds. The gasket uses embossed stainless steel outer layers coated with Viton and an uncoated shim layer to rebound against corrosion, accommodate thickness changes, and require less clamp load to help reduce bore distortion.
Cometic Chevy Gen-1 Small Block V8 .070in MLS Cylinder Head Gasket - 4.165in Bore
