1977-1987 Chevy/GMC Truck Aluminum Performance Radiator. This is the radiator that is 21 Inch high overall. See GMT556A for the
19 Inch high version.
1.25" Upper and 1.5" Lower Hoses. For other configuration, see GMT556A21.
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
2 Rows of 1.25 Inch tubes
Polished OE style tanks
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 w/ 1.5" Lower Hose
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
Tubes (2) 1.25 Inch Tubes
Upper Hose 1.25 Inch
Lower Hose 1.5 Inch
Trans Cooler Fitting: 5/16" Inverted Flare Trans Cooler Fitting Size: 5/16 Inch Inverted Flare
COLD-CASE Radiators GMT556A21-1
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov