COMETIC Complete Gasket Kit Big Twin C10123-030

Every gasket in these kits uses the best materials possible for its intended application, Multi-Layer Steel (MLS) head gaskets, Steel Viton-coated base gaskets, Blue Viton valve stem seals, Aluminum Foam Material (AFM) race-style exhaust gaskets, Complete kits include motor gasket kit plus primary, derby and inspection cover gaskets, Made in the U.S.A.