77-87 GM truck 21 Inch 1.25/1.5 Outlets Cold Case Radiators

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Cold Case Radiators

SKU:GMT556A21-1

Regular price $435.54
Regular price $456.28 Sale price $435.54
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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 inch Upper and 1.5 inch 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.
Details:

  • 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 inch 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 inch Inverted Flare
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Vehicle Fitment

Year Make Model Trim
1979–1980 GMC C1500 Heavy Half
1979–1982 GMC K1500 Sierra Grande
1979–1982 GMC K3500 Sierra Grande
1979–1982 GMC K2500 Sierra Grande
1979–1982 GMC C3500 Sierra Grande
1979–1982 GMC C2500 Sierra Grande
1979–1982 GMC C1500 Sierra Grande
1979–1982 GMC C1500 Street Coupe
1979–1986 GMC C2500
1979–1986 GMC K1500 Sierra Classic
1979–1986 GMC C2500 Sierra Classic
1979–1986 GMC C3500 Sierra Classic
1979–1986 GMC K2500 Sierra Classic
1979–1986 GMC K3500 Sierra Classic
1979–1986 GMC C1500 Sierra Classic
1979–1986 GMC K2500
1979–1986 GMC C2500 High Sierra
1979–1986 GMC C3500 High Sierra
1979–1986 GMC K2500 High Sierra
1979–1986 GMC K3500 High Sierra
1979–1986 GMC K1500 High Sierra
1979–1986 GMC C1500 High Sierra
1979–1986 GMC C1500
1979–1986 GMC K1500
1979–1986 GMC K3500
1979–1986 GMC C3500