1964-1965 Chevrolet Chevelle/El Camino Aluminum Performance Radiator. AT Transmission. These COLD-CASE radiators are Tig welded 100 percent aluminum and absolutely beautiful. Don't buy a 3 or 4 row aluminum radiator! It doesn't cool as good as these oversize 2 row models. These radiators are original appearing and have the correct stamping. Once painted, you'd be hard pressed to find a difference over an original versus a COLD-CASE. 100 percent TIG welded All Aluminum Polished OE style tanks (2) 1.25 inch Tubes 16 fins per inch Corrugated fins that give more surface area and more thermal transfer Pressure tested For Automatic trans Direct fitment for 64-65 Chevelle/El Camino Old Part Number: RPE541 Radiator Specs Core Height 15.12 inch Core Width 24.72 inch Overall Height 20.125 inch Overall Width 27.75 inch Overall Thickness 3 inch Upper Hose 1.57 inch Lower Hose 1.77 inch Tubes (2) 1.25 inch Tubes