1964-1967 Pontiac GTO Radiator for LS and LT Engine Swaps
Swapping an LS or LT engine into a 1964-1967 Pontiac GTO demands a radiator that aligns with the original core support and keeps fan shroud and hose angles intact. This 1964-1967 GTO Radiator 15.5 inch tall for automatic transmissions drops into factory mounts without cutting or welding to preserve the A Body engine bay layout. Polished aluminum construction resists corrosion from spirited driving and built-in fittings direct transmission cooling lines. Matching stock dimensions and fit points helps installers save time while maintaining frame and firewall integrity. Owners benefit from consistent temperature control from idle to highway speeds.
Factory Correct Fitment for 1964 1967 GTO A Body
By replicating the factory 15.5 inch core height on 1964 through 1967 Pontiac GTO A Body chassis, this radiator preserves the original fan shroud placement and coolant hose angles mandated by the stock design. Swap projects that pair modern LS and LT engine families benefit from an exact fit that drops into the factory mount points without any trimming or fabrication. This approach eliminates the need to alter frame rails or weld new brackets, reducing installation time and preserving the integrity of the engine bay structure. Installers can secure the unit with common hand tools, relying on the OEM mounting hardware to align the lower and upper support points. The result is a plug and play solution that upholds factory correct geometry and ensures consistent airflow across the core.
Aluminum Construction for Rapid Heat Transfer
Crafted entirely from high quality aluminum, the radiator core and tanks exploit the metal's superior thermal conductivity to transfer heat away from the coolant with exceptional speed. During spirited acceleration or sustained cruising, the large fin density and direct path between inlet and outlet help to minimize hot spots and maintain uniform temperature distribution. Compared to traditional copper brass units, the all aluminum design offers lower mass and faster response to changes in engine load, contributing to stable operating temperatures from idle to highway speeds. Aluminum's inherent resistance to corrosion also means that internal channels remain clear over time, reducing the risk of flow blockage and decreasing service intervals. Together these attributes form a cooling solution well suited to the demands of LS and LT powerplants in classic A Body applications.
Selectable Bare Aluminum or Black Epoxy Finish
Builders can select either bare aluminum tanks and core for a polished factory style or a robust black epoxy finish for enhanced protection in demanding environments. The bare option showcases the meticulous weld seams and fin architecture, echoing the look of original equipment radiators while reflecting light in a period correct manner. Alternatively the black epoxy coating is applied uniformly over all surfaces to guard against moisture intrusion, road salt corrosion, and debris exposure without diminishing airflow through the core. This finish is designed to bond deeply into the porous metal surface, adding an extra barrier against pitting and cosmetic degradation in humid or coastal climates. Both options allow restorers and custom shops to tailor the aesthetic to their project intent, whether preserving a stock presentation or complementing a modern build.
American Craftsmanship for Consistent Quality
Manufactured in the United States under strict bonding and weld quality standards these radiators deliver consistent build precision from one unit to the next. Local production enables rapid design revisions based on installer feedback, ensuring each batch meets or exceeds fit and finish expectations. The surface welds and tube joints undergo rigorous leak testing before shipment, so end users can trust in seal integrity for years of service. In addition domestic sourcing simplifies access to replacement parts and expert technical support, streamlining maintenance and potential upgrades. This level of oversight and traceability also enhances the resale value of a GTO swap project by providing documented provenance of the cooling system.
For the same radiator but with fans, see our 1964-1967 GTO Radiator 15.5" Tall (Automatic Transmission) with Fans designed for exact fit and lasting performance.