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U.S. Radiators Core Designs

For over 40 years, U.S. Radiator has offered the most complete and comprehensive line of “correct appearance and fit” Copper/Brass radiators for American Classic, Muscle Cars, Classic Truck, and Street Rod applications in the industry. Over the last 10 years, we have expanded our line of "correct appearance and fit" radiators with our Desert Cooler Aluminum radiators. We now offer four distinctive performance core designs to handle any horsepower and “hard-to-cool” applications and have been the leader in innovated heat-transfer design. Couple that with our unique “Triple Flow” design and “Low Profile Fan/Shroud” package and every application from “Mild to Wild” is covered.

Standard Automotive Core

Based on 60’s style core with 1/2” tubes on 9/16” centers; the standard automotive core units are drop-in, stock replacements.  Made from all new material they offer the highest quality for your stock application. Available in Normal Duty, Heavy Duty and Desert Cooler styles.
 

High Efficiency "Desert Cooler" Aluminum Core

Our Desert Cooler Aluminum cores are constructed with 2 row 1” tubes on 3/8" centers.  These are all aluminum cores without any epoxies or glues.  The offer comparable heat transfer to any 2 row aluminum radiator in the market and are also available with our Tripleflow™ style.
 

High Efficiency Copper/Brass Core

Copper 80’s style core with 1/2” tubes on 3/8” centers. Increased cooling efficiency without modifications to car.  4 row High Efficiency offers more cooling efficiency than aluminum cores due to tubes on 3/8” centers.  Copper/brass construction to ensure dependability.  Available in Normal Duty, Heavy Duty, Desert Cooler and Tripleflow™ styles.

 

Optima Core

Extreme style copper core with 1/2” tubes on 5/16” centers. Offers 40% more heat transfer points.  The most efficient core on the market when combined with increased air-flow and our Tripleflow™ option.  Available in Normal Duty, Heavy Duty, Desert Cooler and Tripleflow™ styles.

 



Tripleflow™ Option



Radiators have one main function and that is to drop coolant temperature, inlet to outlet, before returning the coolant to the engine.  The better the radiators ability to drop temperatures the more efficient the core and air-flow characteristics.  It's that simple.  Wind tunnel tests of actual radiators (not cut down versions that everyone else uses for their tests and comparisons) have proven the Tripleflow™ design to drop coolant temperatures an additional 15-20% over any other comparably sized radiator.  By re-routing the coolant through the core three times the coolant travels farther in the temperature reducing air-flow and the additional time spent dropping temperature results in amazing heat transfer rates.  So much so, that now our competitors are saying things like "too much temperature drop is not good".  We say, "tell it to the guy with the blown big block in his hot rod."  Our philosophy is, it's easier to adjust operating temperatures up by way of variable air-flow and thermostats than to try and cool with inadequate heat transfer.  Not everyone has the need for the Tripleflow™ design, but it's nice to know it's available when you do.


Note, an auxillary transmission cooler is required for all AT applications and the inlet/outlet must be on opposite sides of the radiator.