KKS 3 Row All Aluminum Replacement Radiator for 1955-1959 Chevrolet and Gmc Trucks - CORE: 19-3/8" H x 21-3/4" W x 2.2" Thick - OVERALL: 26-3/4" H x 26-1/2" W -Inlet/Outlet:1.5"/1.75".. -Trans cooler: Included -polish surface,Die formed tanks to give your ride the vintage style with modern high efficiency cooling technology.