LS Swap Radiator for 1970-1981 Pontiac Firebird Manual Transmission
Owners tackling an LS engine swap in a 1970 to 1981 Firebird manual model rely on the 1970-1981 Firebird Radiator (Manual Trans) to maintain stable operating temperatures while matching original firewall and core support mounts without modification. Featuring TIG welded aluminum tanks and a dense tube and fin core, this radiator handles coolant flow demands of LS powerplants and resists corrosion under daily driving or track use. Installation uses direct factory mounting points on the F body chassis and standard hose connections to avoid trimming or custom brackets, and domestic production ensures consistent quality and reliable cooling under sustained load.
Precision TIG Welding for Enduring Seal Integrity
This radiator features tanks and core fully fused using TIG welding, a method celebrated in automotive cooling systems for its precision and control. The process yields clean and uniform weld beads that maintain consistent wall thickness, eliminating weak points that can lead to leaks under thermal stress. In the high-heat environment of an LS swap, these robust joints endure countless heating cycles without cracking. This construction also resists vibration common in spirited driving or track applications, ensuring a sealed coolant circuit over years of service. Owners benefit from reduced maintenance and confidence that seals will hold up under sustained load. Every connection is crafted to withstand pressure spikes and temperature swings typical of an upgraded powerplant.
Dense Tube and Fin Core Optimized for LS Cooling Demands
Engineers tailored the core density specifically to balance coolant flow velocity with maximal surface exposure, rejecting heat at a rate matching the LS series output. Each tube is flanked by closely spaced fins to maximize thermal transfer, while internal flow paths guide coolant evenly across the entire core. This design minimizes hotspots and helps maintain uniform engine temperatures whether cruising or under full throttle. Drivers will notice stable gauge readings and reduced risk of overheating, even during aggressive runs. The layout also reduces the chance of air pockets forming, which can impair cooling performance. By fine-tuning the core profile, the radiator delivers reliable heat exchange without compromising flow rate.
Choice of Bare Aluminum or Black Epoxy for Lasting Corrosion Defense
Two coating options address different restoration and performance preferences while protecting against environmental damage. The natural aluminum finish forms its own passive oxide barrier, preserving the metal's integrity and reflecting heat. Alternatively, a uniform epoxy top coat creates a seamless barrier that repels moisture, road oils, and debris. Both finishes are applied after meticulous surface preparation, ensuring strong adhesion without impeding thermal conductivity. This flexibility lets owners select an appearance that complements their engine bay, without sacrificing protection or cooling efficiency. Over time, neither coating will degrade, offering continuous defense against corrosion.
Made in the USA for Exact Firebird Fitment and Quality Control
Manufactured domestically to the tight tolerances of F body chassis, this radiator aligns perfectly with the original firewall and core support points on 1970–1981 Pontiac Firebird manual models. It installs using stock hose connections and mounting brackets, eliminating the need for trimming or custom fabrications. Throughout production, each unit undergoes rigorous inspection to verify dimensional accuracy and weld integrity. The result is a seamless fit that streamlines installation for both professional shops and DIY enthusiasts. Consistency in build quality reduces the risk of fitment issues that can arise with imported components. Users gain a reliable cooling solution that upholds factory standards across every batch.
Trust in consistent cooling performance for your LS swap. For the same radiator but with fans consider our 1970-1981 Firebird Radiator (Manual Transmission) with Fans.