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Flex-A-Lite Extruded Core Universal Radiator 34 x 20 LS Engine with Dual Electric Fans

Quick Overview

Flex-A-Lite® 34 x 20 universal performance aluminum radiator for LS engine swaps featuring Extruded Core Technology with fully-shrouded dual electric fan system. Better cooling, stronger and more durable construction with less weight.


Flex-A-Lite® Extruded Core Technology is the future of performance aluminum radiators, replacing multi-core radiators with a new advanced design. Flex-A-Lite® Extruded Core Radiators provide significantly better cooling with a stronger, more durable and lighter design.

This dual-pass universal radiator designed for LS engine swaps. The radiator measures 34 inches wide and 20 inches tall and comes with a fully-shrouded dual electric fan system mounted. The fan system moves 4,600 cfm of airflow and includes a Variable Speed Controller, making this a complete unit, ready to install. This radiator and electric-fan module can be used in a variety of performance vehicles, including racing, street cars, trucks and off-road. Adjustable 90-degree side brackets facilitate a variety of mounting possibilities. Side tanks included welded captured nuts to make mounting electric fans easy. Radiator includes 22-24 lbs. cap and drain petcock.

Key features and benefits of the Flex-A-Lite® Extruded Tube Core Radiators include:

  • Increased contact area between the coolant and aluminum tubes for better heat rejection and cooling
  • A flat surface on which to braze the cooling fins, maximizing the contact between the tubes and fins for increased heat rejection and better cooling
  • The cooling fins have been designed with louver patterns cut into them to direct airflow, improving heat rejection and cooling
  • Wind-tunnel testing has shown that this Extruded Tube Core technology is significantly more efficient for cooling than standard tube radiators
  • The Flex-A-Lite® Extruded Tube Core Radiators are significantly stronger and have a 100-psi burst rating
  • The Flex-A-Lite® Extruded Tube Core Radiators include a corner subhead, reinforcing the cooling tube to header connection, an area prone to cracking and leaking in other brands of aluminum radiators
  • Covered by an exclusive Flex-A-Lite® transferable 2-year warranty

Note: Flex-A-Lite® radiators do not have built-in transmission coolers. This is done to provide optimum cooling for the engine, and we offer advanced-technology transmission coolers for optimum cooling of the transmission. Please see the transmission coolers available on our website.

WARNING: This product can expose you to chemicals, including lead and phthalates, known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to

Additional Information

SKU 111524
Legacy Model Number 312861
Height (inches) 19.84
Width (inches) 33.6
Depth (inches) 6.24
Inlet Side Passenger Side
Air Flow (cfm) 4600
Fan Diameter (inches) Dual 13.5
Number of Blades 8
Amperage Draw 28
Fuse Rating (amp) 40
Model No
Displacement CID No
Fitment Notes No