LS Radiator with Cooling Fans for 1970-1981 Pontiac Firebird Automatic Transmission
When fitting an LS powerplant into a 1970-1981 Pontiac Firebird with automatic transmission, keeping coolant temperatures in check really matters whether you are crawling through city traffic or pushing hard on a back road. This dual fan radiator employs a TIG welded aluminum core and tanks, crafted to eliminate microscopic leaks while resisting corrosion and shedding heat swiftly under higher RPM operation. It mounts to F Body frame rails using factory brackets and aligns with original hose ports for a direct bolt in fit. Fan control engages at set coolant thresholds to maintain consistent core flow and prevent hotspots without drawing excessive current.
Precision TIG Welded Aluminum for Leak Proof Operation
The radiator core and tanks are assembled using precision TIG welding to create uniform joints that eliminate microscopic gaps. This method ensures that coolant remains contained under the intense heat generated by an LS engine, reducing the risk of leaks over time. Aluminum's high thermal conductivity further aids in rejecting heat quickly, maintaining stable temperatures whether driving around town or on a spirited back road. The lightness of the buffed aluminum assembly reduces overall weight under the hood, contributing to more responsive handling. By relying on this meticulous welding process, the unit delivers both structural integrity and reliable performance in demanding conditions.
Optimized Dual Fan Control for Consistent Cooling
Two powerful electric fans are preinstalled and calibrated to activate when coolant temperatures climb above safe thresholds. Their placement covers the entire core surface to prevent local hotspots that could cause boiling or engine stress in slow moving traffic. By drawing just the right amount of current, the fans protect alternator capacity while ensuring quiet operation during highway cruising. This adaptive fan strategy shifts smoothly between light load and heavy demand, safeguarding the LS powerplant under varied driving scenarios. The result is consistent coolant flow and temperature management without requiring driver intervention.
Classic Bare Aluminum and Black Epoxy Finish Options
Customers may choose the natural shine of bare aluminum or a protective black epoxy coating that seals the surface against moisture and road chemicals. The uncoated finish develops a stable oxide layer that forms a barrier against corrosion without adding weight to the assembly. In contrast, the epoxy option applies a durable barrier that resists abrasion from debris and salt spray, extending service intervals. Both finishes maintain the structural strength of high grade aluminum while offering options for either a clean or more discreet appearance. This flexibility ensures the radiator can match restoration projects or custom engine bays with equal effectiveness.
Exact Fitment for Firebird F Body Frame
Engineered specifically for 1970 through 1981 Pontiac Firebird models with automatic transmission, this radiator uses original mounting brackets to attach directly to F Body frame rails. Inlet and outlet ports line up with standard LS plumbing to allow seamless connection with factory hoses and clamps, eliminating the need for custom adapters. The unit sits flush under the hood, preserving clearance for shrouds, fan relays, and accessories so the installation looks and functions like factory equipment. By reusing OEM hardware, the design provides a straightforward bolt in install process that saves time and preserves chassis integrity. This exacting fitment delivers a professional appearance and dependable cooling for any LS swap in the classic Firebird.
Count on MuscleRods quality for consistent coolant control. For the same radiator but without fans, see our 1970-1981 Firebird Radiator (Automatic Transmission).