1966-1967 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 Atuomatice trans Direct fitment for 66-67 Chevelle/El Camino Old Part Number: RPE542 Radiator Specs Core Height 15.4 Inch Core Width 24.7 Inch Overall Height 20.5 Inch Overall Width 27.75 brackets Inch Overall Thickness 3 Inch Tubes (2) 1.25 Inch Tubes Upper Hose 1.57 Inch Lower Hose 1.77 Inch