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Cometic's .092 inch MLS head gasket for Chevrolet 348/409 W-Series Big Block V8 (4.200 in bore) features embossed stainless steel outer layers coated with Viton and a multi-layer stainless core. The MLS design rebounds for corrosion resistance and seals aluminum-to-iron joints without sealants. The uncoated center shim layer accommodates thickness variation to improve load distribution and reduce clamp-induced bore distortion.
Cometic Chevrolet 348/409 W-Series Big Block V8 .092in MLS Cylinder Head Gasket - 4.200in Bore
