LS and LT Radiator for 1970-1981 Chevy Camaro and 1978-1988 G-Body Vehicles
Swapping an LS or LT V8 into a late 1970s Camaro or G Body often overwhelms the cooling system, and the 1970 through 1981 Camaro and 1978 through 1988 G Body Radiator (AutoTrans) restores reliable temperature control for automatic transmission conversions. Built with a TIG welded aluminum core and matching tanks, it accelerates heat rejection and resists corrosion when routed through 4L60E and 4L80E cooler lines. Installation drops directly into factory frame rails on Camaro and Monte Carlo A Body as well as G Body platforms without cutting or custom brackets. Consistent coolant flow and pressure under spirited road use and extended highway driving keep both engine and transmission operating within safe temperature ranges.
Precision TIG welded aluminum structure
The entire radiator core and tanks are assembled using TIG welding with high grade aluminum, creating joints that withstand repeated exposure to heat cycles and vibration. Pure metal welds promote uniform heat transfer throughout the body of the radiator, eliminating cold spots that can arise from overlapping seams. This method also minimizes the risk of cracks or leaks, since there are no layered joints that can separate under stress. Every unit undergoes a thorough inspection in domestic facilities to confirm weld integrity and dimensional accuracy, ensuring a perfect alignment with LS and LT swap dimensions. The result is a robust assembly that maintains consistent coolant pressure during spirited driving and towing demands.
Engineered coolant flow path for LS and LT V8 thermal control
Inside the core, coolant moves through a carefully designed tube and fin configuration that matches the heat output characteristics of modern LS and LT engines. Sequential routing prevents hot coolant from bypassing cooler zones, maximizing surface area contact with aluminum fins for rapid heat rejection. This optimized path also reduces trapped air pockets that could lead to local overheating near the block. Maintaining a stable coolant temperature helps preserve transmission fluid viscosity in 4L60E and 4L80E units by avoiding sudden spikes. As a consequence, engine operating temperatures stay within safe ranges even under extended highway cruising, lowering component stress and spacing out service intervals.
Plug and play installation in Camaro and G body chassis
This radiator fits directly into factory frame rails on 1970 through 1981 Camaro and 1978 through 1988 G body models without any cutting or aftermarket brackets. Upper mounting tabs and lower feet mate precisely with original locations, and the integrated cooler ports align with 4L60E and 4L80E transmission lines, simplifying hose routing. By preserving the stock engine bay layout, installers save significant time and avoid fabricating custom supports. The secure fit not only maintains a clean appearance but also ensures reliable coolant flow and pressure under all driving conditions.
Protected aluminum finish for lasting corrosion resistance
Builders can choose a natural bare aluminum surface or opt for a black epoxy coating to defend against moisture and road salt. The bare aluminum finish forms a stable oxide barrier that resists flaking, while the epoxy layer seals microscopic pores and prevents underfilm rust formation. Both options are applied in controlled environments to guarantee uniform coverage and strong adhesion. This flexibility in appearance lets enthusiasts blend the radiator into a polished engine bay or maintain a stealth look, all while providing enduring protection against corrosion.
This radiator delivers reliable coolant management under spirited and highway driving. For the same radiator but with fans, see our 1970-1981 Camaro and 1978-1988 G body Radiator (Automatic Transmission) with Fans.