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An Unparalleled Piece of Buick Muscle Car History: The 1971 Buick GS Stage 1 Convertible is already an exceptionally rare machine, with a mere 81 units produced for that model year. However, the example heading to auction at the Florida Summer Special 2025 on Friday, July 11th, elevates rarity to an entirely new level. Purportedly special-ordered by the selling dealer for his wife, this particular GS Stage 1 Convertible is believed to be the only one ever produced with its specific combination of factory equipment. Featuring a matching numbers 455 cubic inch V-8 engine, an automatic transmission, and a 3.42 Positraction rear end, this convertible delivers the potent performance that the Stage 1 moniker signifies. Its originality extends to the interior, and it comes loaded with desirable options including air conditioning, power steering, power brakes, power windows, a 6-way power seat, cruise control, and an AM/FM radio with rear speakers. This unique and highly collectible Buick GS Stage 1 Convertible represents an unparalleled opportunity to own a truly one-of-a-kind piece of American muscle car history.
Legendary Stage 1 Power: Engine and Performance: The heart of this 1971 Buick GS Stage 1 Convertible is its matching numbers 455 cubic inch V-8 engine, a legendary powerplant in the muscle car era. The Stage 1 designation signified a high-performance version of the 455, featuring improved cylinder heads, a more aggressive camshaft, and a tuned Quadrajet carburetor. This potent combination resulted in a factory rating of 345 horsepower and a massive 460 lb-ft of torque, making it one of the most formidable engines of its time. Power is delivered smoothly and efficiently through a 4-speed automatic transmission to a 3.42 Positraction rear end, ensuring excellent off-the-line traction and strong acceleration. While the horsepower rating might seem conservative by modern standards, the sheer torque of the 455 V8 provided effortless cruising and the ability to launch with authority. The Stage 1 package transformed the already capable Buick GS into a serious contender on the street and strip.
Uniquely Optioned for Ultimate Rarity: What sets this 1971 Buick GS Stage 1 Convertible apart is its purportedly unique combination of factory options. While the standard Stage 1 already included performance enhancements, this particular car was reportedly special-ordered with a host of comfort and convenience features rarely seen together on these high-performance convertibles. These include air conditioning for comfortable cruising in warm climates, power steering and power brakes for ease of handling and stopping, power windows for added convenience, a 6-way power seat for optimal driver comfort, cruise control for relaxed highway driving, and an AM/FM radio with two rear seat speakers for enhanced audio enjoyment. The inclusion of a map mirror further adds to its unique specification. The selling dealer’s claim that this is the only example known to exist produced as-equipped, if verifiable, makes this GS Stage 1 Convertible an incredibly rare and highly desirable find.
Original Interior and Well-Preserved: This 1971 Buick GS Stage 1 Convertible retains its original ivory interior, a testament to its care and preservation over the years. The original interior provides a glimpse into the car’s factory specifications and adds to its authenticity. The car also comes with desirable equipment such as dual sport mirrors, a tilt column for adjustable steering comfort, a speed minder, interior lights, door and fender protection, and bumper protection. The power bench seat with an armrest offers comfortable seating for multiple occupants.
Comprehensive Documentation and Accessories: Adding to the appeal of this rare Buick are the included accessories and documentation. The car comes with original bias ply tires, a custom California car cover to protect its finish, an original tonneau cover for a clean look when the top is down, and valuable shop and service manuals for maintenance and repair. This comprehensive package enhances the car’s collectibility and provides valuable resources for its future owner.
Low Production Numbers and High Collectibility: The 1971 Buick GS Stage 1 Convertible was produced in very limited numbers, with only 81 units ever made. This inherently low production, combined with the potent Stage 1 engine and the desirability of a convertible body style, makes these cars highly sought after by collectors. The purported unique option combination of this particular example further amplifies its rarity and potential value.
VIN and Specifications: The Vehicle Identification Number (VIN) for this 1971 Buick GS Stage 1 Convertible is 434671H174254, uniquely identifying this specific vehicle. Key specifications include the matching numbers 455 cubic inch V-8 engine producing 345 horsepower, paired with an automatic transmission and a 3.42 Positraction rear end. The exterior was originally finished in Stratomist Blue, complemented by an ivory interior.
Summary:
- Exceptionally rare 1971 Buick GS Stage 1 Convertible, 1 of only 81 produced.
- Purportedly the only example produced with its unique combination of factory options.
- Matching numbers 455 cubic inch V-8 engine producing 345 horsepower.
- Equipped with an automatic transmission and a 3.42 Positraction rear end.
- Features original ivory interior and numerous desirable options including air conditioning and power windows.
- Comes with original bias ply tires, custom car cover, original tonneau cover, and shop/service manuals.
- Highly collectible due to low production numbers and unique specification.
Disclaimer: Information provided is for general informational purposes only and is based on available details. Potential buyers are advised to conduct their own thorough inspection and verification of any vehicle.
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