Radiator support seals help prevent overheating by properly sealing the radiator to the core support. All seals are die-cut from correct materials and include pressure sensitive adhesive when required. All seals that were installed by push-in-fasteners include precut holes. 4-piece kit, requires 6 push-in fasteners for installation. Fits Corvettes with factory aluminum radiator or replacement copper radiators. 350 4-speed without AC. Fits 1969-1972 Corvette.