66-68 Impala Aluminum Radiator and Dual 12 Inch Fan Kit Stamped. 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 Fan Diameter 12 Inch 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 auto/maunal trans Direct fitment for 61-65 Impala Old Part Number: RPE566K Radiator Specs Core Height 17.5 inch Core Width 25.1 inch Overall Height 23 inch Overall Width 28.75 inch Overall Thickness 6 inch Upper Hose 1.5 inch Lower Hose 1.75 inch Tubes (2) 1.25 inch Tubes