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The Cometic StreetPro Pontiac 455 top-end gasket kit provides a full set of gaskets and seals for Pontiac 455 big-block rebuilds, including an MLS cylinder head gasket sized for a 4.200" bore. StreetPro kits emphasize quality materials—MLS, AFM, aramid fiber and armor-clad—and target builders seeking a complete, budget-minded gasket solution for street engines.
Cometic Street Pro GM 1970-76 455ci PONTIAC Big Block 4.200 Top End Gasket Kit
