1966 Pontiac GTO Convertible 4-Speed

This 1966 Pontiac GTO two-door convertible has been one-family owned for nearly 40 years and was the recipient of a frame-off restoration that was completed in 2012, accruing just 400 miles since. The rebuilt Tri-Power 389ci V8 has been paired with a replacement Muncie M21 4-speed manual transmission, and transmission maintenance was carried out in summer 2021. Finished in Fontaine Blue with a white retractable top over a reupholstered Parchment vinyl interior, this first-generation GTO is now offered with the original transmission, console, carburetor, intake, build documentation, owner’s manuals, a 1966 Pontiac sales brochure, a color chart, a convertible operation guide, a shop manual, Pontiac Historical Services documentation, and a clear Tennessee title in the seller’s name.

First launching in 1964 on the General Motors A-body platform, the GTO was initially an option package for the Pontiac LeMans and later became a standalone model in 1966. This GTO from that year has been family-owned and garage-kept for 39 years and was subject to a body-off restoration between 2011 and 2012. As part of the refurbishment performed, the body was prepped and repainted in the factory shade of Fontaine Blue (D-4). The color scheme is offset by a replacement, power-operated white convertible top, and additional body features include quad stacked headlights, hood scoops, bright moldings and trim, and a dual exhaust system at the rear.

Steel 14” Rally wheels with polished trim rings are mounted to Firestone redline tires. Handling is aided by power steering and power-assisted drum brakes.

The interior was refurbished with correct Parchment vinyl seating and door panels, contrasted by replacement black carpeting and Pontiac-branded floor mats. The cabin is accented in faux woodgrain trim, with additional amenities including factory air conditioning, a push-button radio, and a cue ball shift knob.

Instrumentation includes a 120-mph speedometer, an 8k-rpm tachometer, and gauges for fuel level, coolant temperature, and oil pressure along with a warning light for voltage. The five-digit mechanical odometer reads 70k miles, although true mileage on the chassis is unknown. Approximately 400 miles have been driven since completion of the restoration in 2012.

The rebuilt 389ci Tri-Power V8 was rated at 335 horsepower and was overhauled during restoration. Power is directed to the rear wheels via a Muncie M21 4-speed manual transmission which replaces the car’s original 2-speed automatic. The seller notes that a replacement transmission gasket was installed in June 2021.

Photos showing the underside are available in the carousel.

The sale includes the car’s original transmission, console, carburetor, and intake. Additionally, receipts, invoices, a sales brochure, convertible operation guide, shop manual, PHS documentation, and other build documentation will be included.

The trim tag shows the following data:

Build Date:  10D – Assembly the fourth week of October

Style:  66-24267 – 1966 Pontiac GTO two-door convertible

Trim:  224-B – Parchment vinyl

Assembly Plant:  PON – Pontiac, Michigan

Paint:  D-4 – Fontaine Blue with a Blue soft top