LS Radiator for 1973-1977 A-Body Cars with Automatic Transmission
Maintaining stable coolant temperatures when installing an LS in a 1973 to 1977 A Body with automatic transmission requires a specialized cooling solution and the 1973 to 1977 A Body LS Radiator (Automatic Trans) addresses this need. Crafted from high grade aluminum with fully TIG welded tanks and core, it rejects heat rapidly while staying light enough to clear tight underhood spaces. Installation adheres to factory mounting points and hose connections, offering a direct bolt in fit that requires no trimming or modifications. Internal flow channels maintain even coolant distribution across the core to prevent hotspots during long highway runs or spirited driving.
Expert TIG Welding Ensures Leak Free Durability
Every joint on this LS radiator is crafted using TIG welding to deliver a consistently strong bond between tanks and core. This method creates a clean fusion that resists cracks or gaps even under repeated thermal cycles. Because aluminum is naturally prone to warping when heated, the precise weld technique preserves the original shape and alignment of each passage. The result is a radiator that can withstand the high coolant pressures and temperature swings generated by modern LS engines without developing leaks or weak spots over time.
Innovative Flow Channel Design for Consistent Engine Cooling
Internal flow channels are engineered to direct coolant evenly across every core tube, preventing concentrated hot zones during heavy use. This balanced distribution maximizes the surface area exposed to air, speeding up heat transfer and keeping engine temperatures stable. By reducing temperature peaks, the system helps protect internal components from fatigue caused by repeated heating and cooling. The careful shaping of these passages also maintains optimal flow rates, ensuring the radiator draws heat away from the engine even during spirited driving or long highway runs.
Choice of Aluminum or Black Epoxy Finish
The radiator is available in a natural bare aluminum finish that highlights craftsmanship and allows for simple cleaning, or in a robust black epoxy coating that adds an extra layer of corrosion protection. Bare aluminum offers exceptional conductivity and lets heat pass through the walls of the core with minimal resistance. The epoxy option bonds tightly to exposed surfaces, creating a barrier against moisture, road salt, and chemical contaminants. Both coatings maintain the radiator's ability to shed heat rapidly while providing builders with a tailored look for their engine bay.
Direct Bolt In Fitment for 1973 to 1977 A Body Automatics
This unit is designed to align perfectly with the factory mounting points and hose connections on 1973 to 1977 A Body cars equipped with an automatic transmission. No trimming, cutting, or custom brackets are required, so installation is quick and precise. You can retain original brackets, maintain stock hose routing, and avoid guesswork on alignment. The result is reliable coolant flow from day one, letting you spend less time under the hood and more time driving your Chevelle, Monte Carlo, El Camino or other classic model.
Count on MuscleRods for reliable coolant control in your LS swap and for the same radiator but with fans see our 1973-1977 A-Body LS Radiator (Automatic Transmission) with Fans.