Cold Case Radiators GMT556A21K Features:

1977-1987 Chevy/GMC Truck Aluminum Performance Radiator.This is the radiator that is 21 inches high overall. For the 19 inches high version, see GMT556AKThese 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.Fits:1977-1987 Chevy/GMC TruckDetails:100 percent TIG weldedAll AluminumPolished OE style tanks(2) 1.25 inch Tubes16 fins per inchCorrugated fins that give more surface area and more thermal transferPressure testedFor automatic transDirect fitment for 77-87 GM TruckRadiator SpecsCore Height 18.8 inchCore Width 28.35 inchOverall Height 21 inchOverall Width 34.33 inchOverall Thickness 6 inchUpper Hose 1.50 inchLower Hose 1.75 inchTubes (2) 1.25 inch Tubes