Radiator Alum. LS Swap 31.5in. X 17in.

The BE-COOL RADIATORS Aluminum LS Swap radiator (31.5" × 17") is a purpose-built cooling solution for GM LS-series engine swaps into non-original platforms. This aluminum radiator delivers efficient heat rejection in compact dimensions, making it ideal for engine swap projects where factory cooling systems no longer fit or perform adequately. The radiator features passenger-side inlet and outlet configurations, allowing flexible routing in custom engine bay layouts common to street rods, classics, and retrofit applications.

At 31.5 inches wide and 17 inches tall with a 3-inch core depth, this radiator is engineered to fit tight engine compartments while maintaining adequate surface area for LS-swap cooling demands. The all-aluminum construction minimizes weight compared to traditional copper-brass designs—a critical consideration in performance builds where every pound matters. The passenger-side inlet/outlet design enables builders to route coolant hoses away from high-heat areas and moving engine components, reducing installation complications during the swap process. This radiator weighs 16.53 pounds and arrives ready for integration into custom plumbing systems.

Engine swap builders rely on properly sized radiators to handle the thermal output of modern powerplants in vintage chassis. The LS platform produces substantial heat, especially in street applications where OEM cooling capacity assumptions no longer apply. This BE-COOL radiator accommodates that reality with a core designed for LS thermal loads in compact configurations. Fitment verification against your specific frame, engine bay geometry, and hose routing plan is essential before purchase, as swap-specific requirements vary significantly between platforms.