LS Radiator with Automatic Transmission Fans for 1965-1970 Chevy Impala
Installing an LS automatic transmission in a 1965-1970 Chevy Impala often hits a roadblock at the radiator where frame rails and the power steering box compete for space. This Impala Radiator (Auto Trans) with Fans features a notched upper rail and original style mounting bosses so the unit installs without cutting frame rails or moving components. Equipped with dual electric fans and a full height aluminum core, it maintains stable coolant temperatures in city traffic and spirited driving while keeping front end weight balanced.
Precision Fitment for Impala Power Steering Clearance
This radiator features a carefully notched upper support rail that clears the factory power steering box without any frame rail cutting or pump repositioning. By retaining the original mounting bosses and using stock hardware, the unit installs directly into the 1965 to 1970 Impala frame rails exactly where the factory radiator sat. This design preserves the factory geometry and alignment of the front suspension, reducing trial and error during a swap. Builders benefit from a straight-forward, bolt-in installation that maintains a clean under-hood appearance and keeps focus on tuning the LS engine rather than custom fabrication.
Dual Electric Fan Arrangement for Steady Cooling
Preinstalled dual electric fans are wired to engage with the ignition, ensuring continuous airflow even in heavy stop and go traffic or during spirited street runs. Their blades are tuned to draw heat evenly across the full height core, preventing hotspots that can accelerate seal wear or lead to vacuum loss in automatic transmissions. Quiet motor housings strike a balance between airflow volume and cabin noise, while the fans' lightweight design helps maintain front end balance when paired with an LS powertrain. This integrated cooling strategy keeps engine and transmission temperatures in check under a wide range of driving conditions.
Full Height Aluminum Core for Rapid Heat Transfer
At the heart of this assembly lies a full height aluminum core made from high quality alloy prized for its exceptional thermal conductivity and inherent corrosion resistance. The large surface area and closely spaced cooling channels facilitate rapid heat extraction from the coolant, delivering consistent operating temperatures even under load. The low mass of the aluminum core also reduces overall radiator weight, helping preserve the stock front end balance critical in B-Body handling. Together, these characteristics ensure dependable cooling performance for both the LS engine and automatic transmission throughout long drives or track sessions.
Durable Finish Options Crafted in the USA
Customers can choose between a classic bare aluminum look that highlights the metal's natural sheen or a rugged black epoxy coating that resists road salts, coolant drips, and environmental moisture. The black epoxy barrier adds a layer of chemical protection to the aluminum core and tanks, extending service life by guarding against pitting and oxidation. Both finishes are applied at our domestic facility under strict quality controls, guaranteeing uniform coverage and adhesion that withstands repeated heat cycles. This attention to finish details merges period-correct style with lasting durability so your swap project remains reliable and visually appealing for years to come.
Count on reliable cooling performance for your LS swap. For the same radiator but without fans see our 1965-1970 Impala Radiator (Automatic Transmission) Without Fans.