LS Swap Radiator for 1970-1981 Pontiac Firebird with Automatic Transmission
When you tackle an LS engine swap in a 1970 through 1981 F Body Firebird with an automatic transmission you need a cooling solution that aligns with factory mounting points and resists corrosion. The 1970-1981 Firebird Radiator (AutoTrans) features a precision TIG welded aluminum core and tanks to provide reliable heat rejection during spirited street runs or extended highway cruising. Maintaining original frame geometry and including complete hardware for direct installation this radiator ensures stable coolant flow and safeguards engine performance.
Robust Aluminum Structure Crafted with TIG Welding
The entire radiator core and tanks are formed from high quality aluminum and joined using precision TIG welding. This fabrication method delivers consistent weld beads that preserve coolant passage geometry and limit distortion as temperatures rise. With minimal thermal stress, each joint remains leak free even under rigorous street driving or extended highway runs. The lightweight construction not only reduces overall mass but also lessens strain on factory mounting points, ensuring the assembly stays secure and maintains proper fluid routing over time.
Optimized Fin and Tube Architecture for Stable Temperatures
A dense layout of thin aluminum fins paired with accurately sized coolant tubes creates an efficient thermal network. By maximizing the contact area between coolant and air, this core design dissipates heat evenly and prevents hot spots around cylinder head exits. When the stock fan and shroud are engaged, airflow moves smoothly through the core without adding drag on the engine. The result is a consistent operating range that preserves LS engine performance during spirited runs or long cruises.
Dual Finish Options Delivering Corrosion Defense
Natural aluminum develops a self healing oxide barrier that protects against moisture and corrosive elements in humid driving conditions. For those seeking extra resilience, the radiator can be finished in a durable black epoxy coating applied under controlled factory conditions. Both surface treatments maintain thermal transfer efficiency and are easy to clean after road use. Owners can select the classic bare metal look or a sleek coated appearance to match their restoration theme while safeguarding the radiator's longevity.
Direct Bolt In Fitment for 1970 through 1981 Firebird Frames
Specifically engineered for 1970 to 1981 F-Body Firebird chassis with automatic transmission, this radiator aligns precisely with original mounting locations. Inlet and outlet ports match factory hose positions so no special adapters or drilling are required. A complete hardware package accompanies the unit along with clear instructions to streamline installation in home garages or professional shops. By preserving the car's chassis geometry and coolant line placement, installers achieve a seamless integration that upholds factory standards and reduces setup time.
Enjoy reliable cooling for your LS swap. For the same radiator but with fans consider our 1970-1981 Firebird Radiator (Automatic Transmission) with Fans.