Race Pro Radiator 26 x 19 LS Configuration

The Race Pro Radiator 26 x 19 LS Configuration is purpose-built for LS engine swaps and high-performance street or track applications where OEM cooling capacity falls short. Whether you're running a carbureted LS in a vintage muscle car or a fuel-injected variant in a modern swap, this Northern Radiator unit delivers the thermal management demanded by modified LS powerplants. At 17 lbs and compact 23.5 x 7 x 29-inch dimensions, it fits tight engine bays without sacrificing core efficiency—critical when retrofitting LS engines into platforms never designed for them.

The 26 x 19-inch core dimensions represent an optimal balance between surface area and installation envelope for LS swaps into compact or mid-size platforms. Northern Radiator's Race Pro line employs proven tube-and-fin design with aluminum construction to maximize heat dissipation while minimizing weight—essential for performance builds where every pound counts. The LS-specific configuration ensures proper inlet/outlet port locations for LS engine block fitment and accommodates both standard and crossflow water pump setups common in LS swap harnesses. The lightweight aluminum core reduces parasitic load on the water pump and allows aggressive cooling without oversized reservoirs.

LS engine swap builders—from weekend fabricators to serious track competitors—depend on properly sized radiators to prevent detonation and oil degradation under sustained load. This unit is ideal for street rods, fox-body conversions, S-chassis builds, and vintage imports running LS mills where stock cooling systems are inadequate. Installation requires integration with your swap's custom cooling loop; verify water pump outlet diameter, thermostat housing compatibility, and hose routing clearance before purchase. Pair with a high-flow water pump and quality coolant to maximize thermal efficiency and engine longevity in modified applications.