LS Radiator with Fans for 1970-1981 Pontiac Firebird F-Body Manual Transmission
The 1970 to 1981 Firebird Radiator (Manual Trans) with Fans addresses the common overheating that plagues LS engine conversions in the F-Body manual chassis by combining targeted airflow with a precision cooling core. Its dual electric fans engage automatically at elevated coolant temperatures to sustain airflow through the tightly packaged engine bay. Featuring a TIG welded aluminum core and fully welded tanks, this assembly rejects heat quickly while fitting into factory mounting points for a straightforward installation. Installation times shrink as the radiator drops into the original locations without the need for custom brackets or chassis modifications.
High-grade Aluminum Core Fabrication
Our radiator features a fully TIG welded core and tank assembly machined from high-grade aluminum. TIG welding creates robust joints that resist vibration and fatigue under repeated heat cycles, ensuring consistent core flatness and seal integrity over years of use. The exceptional thermal conductivity of aluminum accelerates heat transfer away from the coolant, allowing the LS engine to operate within its optimal temperature window even under sustained load. Rigorous quality control during fabrication in the United States guarantees tight weld tolerances and airtight seams that prevent coolant leaks. This combination of premium materials and precision welding forms the foundation for efficient heat rejection and reliable performance in the confined engine bay of the 1970–1981 Firebird.
Dual Electric Fan System for Reliable Cooling
A pair of high output electric fans are pre installed on the radiator to maintain steady airflow through the core both in stop and go traffic and at highway speed. These fans engage automatically as coolant temperature rises, preventing hotspots in the core and reducing stress on seals and hoses. By distributing air evenly across the entire surface of the core, the system keeps coolant within the ideal temperature band during spirited driving or extended track sessions. The fans draw minimal electrical power when active, preserving alternator capacity for ignition and ancillary systems while delivering maximum cooling efficiency. This ensures that heat generated by the modern LS powerband is managed effectively without custom shrouds or ducting.
Factory Fitment Using Original Mounting Points
Engineers designed this radiator to drop directly into the factory cradle of the 1970 to 1981 Pontiac Firebird manual chassis with no bracket fabrication or frame modification required. All bolt holes match the OE pattern, and pre fitted mounting plates allow correct alignment with the transmission housing and fan wiring. As a result, installation times shrink and labor costs stay low for professional shops and do it yourself builders alike. The included instructions guide installers through wiring the fan relays and routing hoses for a seamless integration. This straightforward process preserves chassis rail integrity and maintains the stock appearance of the engine bay.
Coating Versatility for Corrosion Resistance
Buyers may choose a bare aluminum finish that develops a protective oxide layer over time or select a black epoxy coating that shields tank and core surfaces from moisture, road salts, and chemicals. The epoxy is applied in a controlled environment to ensure even coverage and strong adhesion without obscuring weld details. Bare aluminum delivers a classic technical look while still resisting corrosion through its natural oxide film. Both finish options undergo extensive testing in hot, humid, and cold climates to verify long term performance. Selecting the right coating enhances both engine bay aesthetics and the radiator’s lifespan under real world driving conditions.
For the same radiator but without fans consider our 1970-1981 Firebird Radiator (Manual Transmission). You can rely on its robust cooling to keep your LS swap running smoothly.