17.5-inch Radiator for LS and LT Engine Swaps in 1964-1967 Pontiac GTO
Anyone installing an LS or LT engine into a 1964 to 1967 Pontiac GTO A Body chassis with an automatic transmission will appreciate a cooling solution that fits like the original unit without trimming hoses or shifting brackets. This radiator's 17.5 inch core height aligns exactly with factory measurements so installers can reuse all stock hoses shrouds and mounting hardware and keep under hood clearances intact. Constructed entirely from aluminum it delivers rapid heat rejection and inherent corrosion resistance for stable temperatures during spirited drives or gridlock traffic. By preserving the factory coolant path geometry engine placement remains true and driveline alignment is unaffected ensuring reliable performance and a tidy engine bay.
Precision 17.5 Inch Core Alignment
Matching the original 17.5 inch core height is critical for a seamless transition to an LS or LT powerplant in a 1964-1967 Pontiac GTO. By aligning precisely with factory measurements, this radiator eliminates the need for hose trimming, bracket shifts or shroud modifications. Installers retain the stock mounting points and preserve the factory coolant routing, ensuring engine placement and driveline alignment remain true. Maintaining the exact port positions also prevents air pockets in the system, which can compromise circulation and lead to hotspots. This direct fit solution saves time on the workbench and preserves the classic under hood presentation of the GTO.
All Aluminum Thermal Efficiency and Weight Advantages
Crafted entirely from high quality aluminum, this radiator exploits the metal's natural conductivity to expel heat rapidly from the coolant. The internal fin and tube architecture maximizes surface area for heat exchange, keeping operating temperatures stable during spirited runs or heavy traffic. Aluminum's low density reduces front end mass, improving weight distribution and steering response without sacrificing strength. Its resistance to corrosion also helps maintain unclogged passages over many seasons, avoiding scale buildup that can impede flow. Together these traits deliver consistent cooling performance under both street and track demands.
Protective Coating Choices for Durability and Style
Customers may select a raw aluminum finish for maximum thermal transfer or opt for a black epoxy coating to guard against moisture and road debris. The untreated surface allows air to contact metal directly, ensuring peak heat dissipation. In contrast, the epoxy layer adds a barrier against pitting and corrosion in humid or salted environments without significantly reducing cooling efficiency. Uniform application and controlled curing produce a durable film that resists peeling and fading over time. The black finish also introduces a visual contrast that highlights polished manifolds and painted valve covers beneath the hood.
Domestic Production Standards for Consistent Quality
Each unit is fabricated and assembled in the USA under strict quality control protocols to deliver a consistent fit across every radiator. In-process inspections verify core height tolerances, tank integrity and weld quality before final release. Local manufacturing allows precise material sourcing and rapid feedback between engineering and production teams, reducing dimensional variances common in dispersed supply chains. This level of oversight ensures that restorations and modern conversions alike benefit from reliable cooling performance. Comprehensive technical support and documentation further streamline installation for professional shops and home builders.
Trust MuscleRods for reliable cooling performance in 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.