The 1964 Pontiac GTO Convertible stands as a definitive milestone that effectively launched the American muscle car era. While many claim the title, this specific Grenadier Red example provides the mechanical proof through its matching numbers drivetrain. It represents a time when Pontiac engineers bypassed corporate bans to put big-block power into mid-sized frames. Seeing this car in person reveals why the GTO nameplate became an instant cultural phenomenon among performance enthusiasts.
Tri-Power Engineering and GTO Heritage
At the center of this 1964 Pontiac GTO Convertible is the legendary 389 CI Tri-Power V-8 engine. This setup utilizes three two-barrel carburetors to deliver a factory-rated 348 horsepower with immediate throttle response. It is paired with a Muncie M20 4-speed manual transmission, offering the driver complete control over the power band. Power reaches the pavement through a 3.23 Safe-T-Track differential, ensuring balanced traction during spirited acceleration. This combination remains one of the most sought-after mechanical configurations in the collector world today.
Authenticity and Documented History
Proven identity is crucial for high-value classics, and this 1964 Pontiac GTO Convertible carries full PHS documentation. The presence of the original build sheet confirms its factory specifications and verifies its status as a genuine Tri-Power car. Collectors often prioritize these documents as they provide a clear roadmap of the vehicle’s assembly and original delivery. Only 8,245 units were produced with this specific engine option for the 1964 model year. Such low production numbers make this particular convertible a rare find for serious Pontiac historians.
Striking Aesthetics and Interior Details
The exterior wears a vibrant coat of Grenadier Red, a color that perfectly accentuates the sharp lines of the early A-body. A power-operated black convertible top offers a seamless transition between closed-cabin comfort and open-air driving excitement. Inside, the black vinyl bucket seats are separated by a sleek center console housing the iconic Hurst shifter. Stewart Warner gauges are neatly integrated to monitor oil pressure, voltage, and water temperature with precision. An Auto Sound AM/FM radio provides modern reliability while maintaining the vintage look of the dashboard.
Engine Performance and Power Specifications
The heart of this machine is the 389 CI V-8 engine producing a formidable 348 HP at the crank. High-performance breathing is handled by the Tri-Power carburetor arrangement, which was the pinnacle of Pontiac street tech in 1964. Its 4-speed manual transmission allows the driver to extract every bit of torque throughout the gears. This car features power steering, making the heavy front-end feel surprisingly nimble during low-speed maneuvers or tight cornering. These specs ensured the GTO could hold its own on both the drag strip and the local boulevard.
Summary of the Saturday Offering
This 1964 Pontiac GTO Convertible represents a rare opportunity to acquire a well-documented forefather of the muscle movement. Its combination of a matching numbers engine and the desirable 4-speed gearbox places it in an elite tier of surviving examples. The inclusion of the PHS documents and original build sheet provides the necessary peace of mind for any investment-grade purchase. As it crosses the block on Saturday, it will undoubtedly serve as a highlight for those who appreciate authentic automotive history. It remains a pure expression of Pontiac’s mid-sixties performance philosophy.
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Source: mecum.com
