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Cometic MLS head gasket for GM small-block 350/400 engines features multiple embossed stainless steel layers with Viton coating and a compressed operating thickness of 0.040". This MLS gasket includes steam holes and is engineered to seal high-output engines without sealants, offering rebound and corrosion resistance while accommodating differing head and block materials for reliable sealing under demanding conditions.
Cometic GM SB2-2 350/400 4.125 inch Bore .040 inch MLS Head Gasket with Steam Holes
