17.5 Inch LS and LT Radiator for 1964-1967 A-Body Pontiac GTO Automatic Transmission
Swapping an LS or LT powerplant into a 1964-1967 A-body GTO with an automatic transmission often runs into clearance and fit issues around the cooling system. The 1964-1967 GTO Radiator 17.5" tall (Auto Trans) features an 17.5 inch core height that matches the factory dimension for a direct installation preserving original hoses shrouds and brackets. The all aluminum construction ensures fast heat rejection and resists corrosion for dependable performance whether you are on the street or the track. By keeping the stock routing and mounting points intact it eliminates the need for modifications that can complicate LS or LT conversions.
Exact 17.5 Inch Core Alignment for LS LT Engine Swaps
The 17.5 inch core height precisely matches the original factory dimension on 1964-1967 A-Body Pontiac GTO models, allowing LS and LT installations without trimming or altering hoses and shrouds. This exact fit preserves all stock mounting brackets and coolant pathways, eliminating clearance headaches that often plague engine swaps. By maintaining the OE alignment, engine placement remains correct, reducing stress on connecting components and preserving driveline geometry. Installers can rely on a direct installation that upholds both function and classic appearance.
All Aluminum Construction for Efficient Cooling and Balance
Crafted entirely from premium aluminum, the radiator core and tanks excel at transferring heat away from engine coolant, keeping temperatures stable during spirited driving or stop-and-go traffic. The lightweight nature of aluminum also helps shift mass rearward, contributing to improved front-to-rear balance and more responsive steering. Its natural resistance to corrosion means the cooling system maintains peak efficiency over many seasons with minimal maintenance. Together, these traits ensure consistent performance whether on a daily commute or a weekend track outing.
Coating Choices for Corrosion Resistance and Engine Bay Style
Owners can select a bare aluminum finish for maximum thermal transfer or a black epoxy coating that offers a durable barrier against moisture and road debris. The untreated surface allows direct metal-to-air cooling, while epoxy adds a protective layer that helps prevent pitting in harsh climates. Beyond protection, the black finish enhances engine bay aesthetics by providing a sleek contrast to polished or painted components. Both options undergo controlled application processes to ensure uniform coverage and lasting adhesion.
Made in USA Craftsmanship for Consistent Quality
Manufactured domestically, each radiator is subject to stringent quality inspections that verify core height, tank volume, and weld integrity before shipping. Local production offers tighter control over material sourcing and fabrication, reducing variability and ensuring every unit meets exacting standards. This commitment to detail delivers a reliable cooling solution that stands up to the demands of restored classics and modernized muscle cars alike. The result is a product that blends heritage appeal with modern engineering confidence.
Count on a reliable cooling solution for your LS or LT swap. For the same radiator but with fans, see our 1964-1967 GTO Radiator 17.5" Tall (Automatic Transmission) with Fans.