Radiators
Performance Radiators & Cooling Cores
Effective engine cooling is not just about preventing overheating — it's about maintaining consistent thermal conditions that allow the engine to run at its designed operating temperature efficiently and reliably. A correctly sized, properly specified radiator maintains coolant temperature within the optimal range regardless of ambient temperature and engine load, providing the consistent thermal environment that allows the engine management system to maintain its calibrated fuelling and timing maps without thermal compensation that costs power and efficiency.
For classic truck restorations and LS swap builds — the applications we serve most extensively — upgrading to an aluminium performance radiator is one of the most effective thermal management improvements available, typically providing significantly better heat rejection than the original copper-brass cores while being physically lighter and more resistant to corrosion.
Aluminium Performance Radiators for Classic Applications
Aluminium radiators provide superior heat rejection to traditional copper-brass cores through better thermal conductivity between the coolant and the external fin structure, and the wider core and improved fin spacing that modern manufacturing allows. For classic Chevy and GMC trucks — particularly those receiving LS engine swaps that produce more heat than the original powerplant — an aluminium core radiator sized appropriately for the new power level is a worthwhile investment in long-term cooling system reliability. Our range from Frostbite and Brothers Trucks covers popular classic truck applications in both drop-in configurations and oversized performance units for modified applications.
Radiator Cores, Supports, and Hardware
Radiator core supports, mounting pads, and associated hardware ensure the radiator is correctly and securely located in the vehicle — preventing vibration damage and maintaining the proper gap and airflow path between the radiator and cooling fan. Correct mounting hardware also ensures that the heavy mass of a full radiator doesn't place stress on the coolant connections at the top and bottom tanks.
