1970-1981 Pontiac Firebird Trans Am Aluminum Performance Radiator. Auto Trans Cars. Night Rider Black Series Our Night Rider Black series radiators blend performance with original appearance to give you the best of both worlds. You will be hard pressed to find a difference between an original versus a Cold-Case. These Cold-Case radiators are Tig welded 100 percent aluminum and feature OEM appearing stamped tanks. Perfect for that restored car wanting the appearance of stock without sacrificing performance. 100 percent TIG welded All Aluminum Powder Coated Black 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 transmission Direct fitment for 70-81 Firebird Trans Am Works with factory fan shroud Radiator Specs: Core Height 18.4 inch Core Width 27.5 inch Overall Height 18.8 inch Overall Width 33.2 inch Overall Thickness 3 inch Tubes (2) 1.25 inch Tubes Upper Hose 1.57 inch Lower Hose 1.57 inch Trans Cooler Fitting: 5/16 inch Inverted Flare