LS and LT 15.5 inch Tall Radiator for 1964-1967 Pontiac GTO
Cooling an LS or LT swap in a 1964 through 1967 Pontiac GTO demands a precise fit and this 15.5 inch tall radiator for automatic transmission setups meets that requirement without altering the factory mounts. The unit drops into the original A-Body core support to preserve fan shroud alignment and hose angles for a straightforward fit. Its polished aluminum construction and USA assembly ensure fast heat rejection and corrosion resistance for dependable operation under load.
Precise Fitment with Factory Core Support
This radiator installs directly into the original A Body core support and preserves fan shroud alignment and hose angles exactly as designed by Pontiac. By matching the factory 15.5 inch core height and transmission cooler line locations, it removes the need for cutting or custom brackets and lets mechanics use common hand tools for installation. Maintaining the stock mount positions ensures the vehicle's frame and firewall connections remain unaltered. The result is a seamless LS or LT swap that feels as precise as the factory build.
Efficient Thermal Management from Aluminum Construction
Constructed entirely from polished aluminum, this radiator excels at rejecting heat to prevent engine overheating under demanding driving conditions. The alloy resists corrosion naturally, keeping coolant passages clear and reducing maintenance over many seasons. Its light weight lessens front end load and preserves the GTO's handling balance. Rapid heat transfer between coolant and fins helps the swapped LS or LT engine sustain stable operating temperatures even under heavy throttle use.
Tailored Finish Options for Restoration and Custom Builds
Choose bare aluminum for a classic engine bay shine that pairs perfectly with chrome accents, or select the black epoxy coating for added protection against moisture and road salt. The epoxy finish provides a uniform barrier without hiding the radiator's fin pattern, while the polished surface highlights the precision of its construction. Each surface option is applied in house to ensure consistent coverage and a clean presentation. This versatility lets builders match the radiator to any restoration theme or custom vision.
Domestic Assembly Ensuring Quality and Support
Manufactured in the USA under strict quality control, this radiator benefits from tight tolerances and rapid incorporation of design enhancements. Local production supports shorter lead times and compliance with SAE guidelines for tank-to-core bonding. Enthusiasts gain confidence in a component engineered and tested domestically, with reliable cooling performance that helps protect engine health and retain resale value. Choosing a home-grown product also backs local industry and skilled craftsmanship.
Trust this radiator for precise fit and reliable cooling. To complete your fan setup see the same radiator but with fans in our 1964-1967 GTO Radiator 15.5" Tall (Automatic Transmission) with Fans.