55 Chevy Radiator Support Kit LS w/AC

The 55 Chevy Radiator Support Kit LS w/AC from Cold Case Radiators is engineered for classic car builders and restoration enthusiasts who demand modern cooling performance in vintage platforms. If you're swapping an LS engine into a 1955 Chevrolet and need factory-style mounting solutions that accommodate modern air conditioning, this kit eliminates the fabrication headaches that plague LS swaps in first-generation Chevys. Built to OEM specifications, it preserves the original aesthetic while supporting the thermal demands of a modern V8 engine bay.

This radiator support assembly is constructed to handle the increased heat output of an LS powerplant while maintaining structural integrity and proper coolant flow. The kit includes A/C provisions, meaning you can run modern climate control without compromising underhood space or aerodynamic flow. Cold Case Radiators designs these assemblies with precision CNC machining and rigid mounting points, ensuring zero flex during high-demand driving and protecting your cooling system from vibration-induced failures. The engineered geometry optimizes radiator positioning for maximum airflow through the core while keeping weight distribution balanced.

This kit is ideal for LS engine swap builds in 1955 Chevrolet models, whether you're targeting a street cruiser, weekend track car, or show-quality restoration. Installation requires basic mechanical skills and standard hand tools; most experienced builders complete the job in 4–6 hours. Compatibility is confirmed for LS-series engines paired with modern radiators and A/C condensers, though you should verify mounting clearances with your specific radiator selection. Weighing 50 lbs, it's substantial enough to provide rigid support without adding excess mass to the frame.