1977-1987 Chevy/GMC Truck Aluminum Performance Radiator.
This is the radiator that is 21 inches high overall. For 19 inch tall version, see GMT556AK
1.25" Upper Hose and 1.5" Lower Hose. For other configuration, see GMT556A21K.
These COLD-CASE radiators are Tig welded 100 percent aluminum and absolutely beautiful.
When you need the biggest and best, look no further than the Cold Case Super Duty Line. All Super Duty kits include 2 row radiators with 1.25" tubes, aluminum fan shroud and dual 14" fans, flowing at 2200cfm per fan! For extreme horsepower applications OR if you just want the best of the best...
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 Truck
Details:
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 77-87 GM Truck
Radiator Specs
Core Height 18.8 inch
Core Width 28.35 inch
Overall Height 21 inch
Overall Width 34.33 inch
Overall Thickness 3 inch
Upper Hose 1.25 inch
Lower Hose 1.5 inch
Tubes (2) 1.25 inch Tubes
Trans Cooler Fitting: 5/16" Inverted Flare
COLD-CASE Radiators GMT556A21-1SK
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov