Cometic Pontiac 428 / 455 V8 4.380in Bore .036in MLS Headgasket

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements. Pontiac 400, 428, & 455ci V8 4.380" Bore MLS Head Gasket. Comprised of mulitple embossed layers of stainless steel with the outer layers utilizing a viton rubber coating. Compressed operating thickness is .036". Each. Fitment: Buick LeSabre Custom 1975 Oldsmobile 98 Luxury 1975 Oldsmobile 98 Regency 1975 Oldsmobile Custom Cruiser Base 1975 Oldsmobile Custom Cruiser Panel 1975 Oldsmobile Delta 88 Base 1975 Oldsmobile Delta 88 Royale 1975 Pontiac Bonneville Base 1967 Pontiac Bonneville Base 1968 Pontiac Bonneville Base 1969 Pontiac Bonneville Base 1970 Pontiac Bonneville Base 1971 Pontiac Bonneville Base 1972 Pontiac Bonneville Base 1973 Pontiac Bonneville Base 1974 Pontiac Bonneville Base 1975 Pontiac Bonneville Base 1976 Pontiac Bonneville Base 1977 Pontiac Bonneville Base 1978 Pontiac Bonneville Brougham 1976 Pontiac Bonneville Brougham 1977 Pontiac Bonneville Brougham 1978 Pontiac Bonneville Safari 1968 Pontiac Bonneville Safari 1969 Pontiac Bonneville Safari 1970 Pontiac Bonneville Safari 1978 Pontiac Catalina 2+2 1967 Pontiac Catalina Base 1967 Pontiac Catalina Base 1968 Pontiac Catalina Base 1969 Pontiac Catalina Base 1970 Pontiac Catalina Base 1971 Pontiac Catalina Base 1972 Pontiac Catalina Base 1973 Pontiac Catalina Base 1974 Pontiac Catalina Base 1975 Pontiac Catalina Base 1976 Pontiac Catalina Base 1977 Pontiac Catalina Base 1978 Pontiac Catalina Brougham 1971 Pontiac Catalina Brougham 1972 Pontiac Catalina Safari 1968 Pontiac Catalina Safari 1969 Pontiac Catalina Safari 1970 Pontiac Catalina Safari 1971 Pontiac Catalina Safari 1972 Pontiac Catalina Safari 1973 Pontiac Catalina Safari 1974 Pontiac Catalina Safari 1975 Pontiac Catalina Safari 1976 Pontiac Catalina Safari 1977 Pontiac Catalina Safari 1978 Pontiac Catalina Ventura 1967 Pontiac Catalina Ventura 1968 Pontiac Catalina Ventura 1969 Pontiac Catalina Ventura 1970 Pontiac Executive Base 1967 Pontiac Executive Base 1968 Pontiac Executive Base 1969 Pontiac Executive Base 1970 Pontiac Executive Safari 1968 Pontiac Executive Safari 1969 Pontiac Executive Safari 1970 Pontiac Firebird 400 1967 Pontiac Firebird 400 1968 Pontiac Firebird 400 1969 Pontiac Firebird Base 1967 Pontiac Firebird Base 1968 Pontiac Firebird Base 1969 Pontiac Firebird Base 1970 Pontiac Firebird Base 1971 Pontiac Firebird Base 1972 Pontiac Firebird Base 1973 Pontiac Firebird Base 1974 Pontiac Firebird Base 1975 Pontiac Firebird Base 1976 Pontiac Firebird Base 1977 Pontiac Firebird Esprit 1970 Pontiac Firebird Esprit 1971 Pontiac Firebird Esprit 1972 Pontiac Firebird Esprit 1973 Pontiac Firebird Esprit 1974 Pontiac Firebird Esprit 1976 Pontiac Firebird Formula 1970 Pontiac Firebird Formula 1971 Pontiac Firebird Formula 1972 Pontiac Firebird Formula 1973 Pontiac Firebird Formula 1974 Pontiac Firebird Formula 1975 Pontiac Firebird Formula 1976 Pontiac Firebird Formula 1977 Pontiac Firebird Formula 1978 Pontiac Firebird Formula 1979 Pontiac Firebird HO 1967 Pontiac Firebird Trans Am 1969 Pontiac Firebird Trans Am 1970 Pontiac Firebird Trans Am 1971 Pontiac Firebird Trans Am 1972 Pontiac Firebird Trans Am 1973 Pontiac Firebird Trans Am 1974 Pontiac Firebird Trans Am 1975 Pontiac Firebird Trans Am 1976 Pontiac Firebird Trans Am 1977 Pontiac Firebird Trans Am 1978 Pontiac Firebird Trans Am 1979 Pontiac Grand Am Base 1973 Pontiac Grand Am Base 1974 Pontiac Grand Am Base 1975 Pontiac Grand LeMans Base 1975 Pontiac Grand LeMans Base 1976 Pontiac Grand LeMans Base 1977 Pontiac Grand LeMans Safari 1975 Pontiac Grand LeMans Safari 1977 Pontiac Grand Prix Base 1967 Pontiac Grand Prix Base 1968 Pontiac Grand Prix Base 1969 Pontiac Grand Prix Base 1970 Pontiac Grand Prix Base 1971 Pontiac Grand Prix Base 1972 Pontiac Grand Prix Base 1973 Pontiac Grand Prix Base 1974 Pontiac Grand Prix Base 1976 Pontiac Grand Prix Base 1977 Pontiac Grand Prix LJ 1975 Pontiac Grand Prix LJ 1977 Pontiac Grand Prix SJ 1975 Pontiac Grand Prix SJ 1976 Pontiac Grand Prix SJ 1977 Pontiac Grand Safari Base 1971 Pontiac Grand Safari Base 1972 Pontiac Grand Safari Base 1973 Pontiac Grand Safari Base 1974 Pontiac Grand Safari Base 1975 Pontiac Grand Safari Base 1976 Pontiac Grand Safari Base 1977 Pontiac Grand Safari Base 1978 Pontiac Grandville Base 1971 Pontiac Grandville Base 1972 Pontiac Grandville Base 1973 Pontiac Grandville Base 1974 Pontiac Grandville Brougham 1975 Pontiac GTO Base 1967 Pontiac GTO Base 1968 Pontiac GTO Base 1969 Pontiac GTO Base 1970 Pontiac GTO Base 1971 Pontiac GTO Base 1972 Pontiac GTO Base 1973 Pontiac GTO The Judge 1970 Pontiac GTO The Judge 1971 Pontiac LeMans Base 1967 Pontiac LeMans Base 1968 Pontiac LeMans Base 1969 Pontiac LeMans Base 1970 Pontiac LeMans Base 1971 Pontiac LeMans Base 1972 Pontiac LeMans Base 1973 Pontiac LeMans Base 1974 Pontiac LeMans Base 1975 Pontiac LeMans Base 1976 Pontiac LeMans Base 1977 Pontiac LeMans Luxury 1972 Pontiac LeMans Luxury 1973 Pontiac LeMans Luxury 1974 Pontiac LeMans Safari 1969 Pontiac LeMans Safari 1970 Pontiac LeMans Safari 1973 Pontiac LeMans Safari 1974 Pontiac LeMans Safari 1975 Pontiac LeMans Safari 1977 Pontiac LeMans Safari Luxury 1974 Pontiac LeMans Sport 1970 Pontiac LeMans Sport 1971 Pontiac LeMans Sport 1972 Pontiac LeMans Sport 1973 Pontiac LeMans Sport 1974 Pontiac LeMans Sport 1975 Pontiac LeMans Sport 1976 Pontiac LeMans Sport 1977 Pontiac LeMans T37 1971 Pontiac Tempest Base 1967 Pontiac Tempest Base 1968 Pontiac Tempest Base 1969 Pontiac Tempest Base 1970 Pontiac Tempest Custom 1968 Pontiac Tempest Custom 1969 Pontiac Tempest Safari 1968 Pontiac Tempest Safari 1969