LS Radiator for 1973-1977 GM A-Body Vehicles with Automatic Trans
Installing an LS engine into a 1973 to 1977 A Body with an automatic gearbox demands a cooling solution that maintains stable coolant temperatures under varied driving conditions. This 1973 to 1977 A Body LS Radiator (Automatic Trans) features a high grade aluminum core and TIG welded tanks to shed heat quickly within the tight engine bay of Chevelle, Monte Carlo, El Camino and other A Body models. With internal flow passages that guide coolant evenly across the core, hotspots cannot develop during extended runs or spirited drives. By following factory mounting points and maintaining stock hose connections, this radiator delivers a direct bolt in fit that eliminates trimming or custom brackets.
Precision Engine Bay Fitment for 1973 to 1977 A Body Automatics
This radiator is designed to match the exact mounting points and hose connections on 1973 to 1977 A Body models with an automatic transmission, including Chevelle, Monte Carlo and El Camino. By following factory frame brackets and stock routing, installers achieve a direct bolt in alignment without trimming or custom supports. Such precision fit ensures the radiator sits securely in the tight engine bay, preserving original under hood clearance and style. With proper alignment, coolant hoses run smoothly and leaks are minimized from the start. This attention to detail speeds up installation and allows builders to focus on other aspects of the LS swap.
Robust Aluminum Core and TIG Weld Construction
Constructed from high quality aluminum, the core and tanks are joined through a full TIG welding process that ensures strong bonds with minimal distortion. Unlike other joining methods, TIG welding delivers consistent weld beads that resist cracking under repeated heat cycles and pressure. Aluminum properties such as light weight and natural corrosion resistance reduce overall weight under the hood while standing up to coolant demands of modern LS engines. This sturdy build withstands vibration and thermal stress, preventing leaks and extending service life. Each unit is made in the USA to exacting standards that guarantee reliable operation mile after mile.
Tailored Flow Design for Even Heat Distribution
Internal flow passages are engineered to guide coolant evenly across the entire core surface, eliminating hotspots that can lead to engine stress or reduced seal life. By balancing coolant velocity and core exposure to incoming air, the system accelerates heat rejection when cruising on highways or under heavy throttle. Consistent flow rates prevent cavitation and maintain stable coolant pressures, ensuring performance does not drop off during spirited drives. The design also limits sediment accumulation within the core tubes, simplifying maintenance and preserving thermal efficiency over time. This careful management of coolant flow delivers smooth temperature control under all driving conditions.
Bare and Epoxy Coating Options for Corrosion Resistance
Builders can choose the radiator in its natural bare aluminum finish or opt for a black epoxy coating that adds a protective barrier against moisture and chemical exposure. The bare core promotes maximum thermal conductivity by allowing heat to transfer directly through the metal walls, and it can be cleaned with common solvents for easy upkeep. The epoxy finish, meanwhile, guards against corrosion from road salt, coolant additives and environmental factors without hindering cooling performance. Both finishes resist surface wear and extend the service life of the radiator in varied climates. This flexibility lets installers match the visual style of a classic restoration or a modern custom build.
Built for consistent cooling on every drive. For the same radiator but with fans, consider our 1973-1977 A-Body LS Radiator (Automatic Transmission) with Fans.