Entropy HPX Aluminum Radiator - LSX - 63-66 C10

Heavy duty aluminum radiator for 1963-1966 GM trucks, complete with an aluminum shroud holding dual 11" HPX fans rated at 3400CFM. Together, they pull 35-40 amps. Entropy radiators are made with pride in the USA with USA-made cores. 

Designed for LS engines, it has both hose connections on the passenger side, a steam vent port and the temperature switch installed directly into the radiator.

Add the optional dual cooling fan wiring harness for a simple installation. RH-02 includes relays, fuses, 187F temp switch and 10ga wire.

NOTE: Radiator cap not included. Add optional polished billet 16lb cap above.

  • All aluminum, TIG-welded construction; heavy duty 2-row core with 1.00" tubes.
  • Upper hose connection is 1-1/2", lower is 1-3/4".
  • Billet CNC machined filler neck. 
  • Brass overflow connections and drain petcock.
  • Heavy duty, stacked-plate transmission cooler.
  • Aluminum shroud with dual 11" HPX fans rated at 1700 CFM each.
  • Completely assembled and ready to drop into your truck.
  • Lifetime Warranty

Radiator is not polished and has a natural finish. For photos, the radiators have been removed from the packaging and cleaned with an aluminum cleaner and a fine scuff pad.

Requires 4-Row Factory Mounting Brackets