U.S. Radiator has just finished development on 4 new crossflow radiators to replace your stock 1955-59 Chevy Truck downflow radiator.  Each radiator comes with top and bottom mounting plates and simple installation with a drill and grinder.

1955-57 Copper/Brass Crossflow

1955-57 Aluminum Crossflow

1958-59 Copper/Brass Crossflow

1958-59 Aluminum Crossflow