Documented, Restored Buick GS Stage 1 455ci V8 Automatic Air Conditioning

The 1970 Buick GS Stage 1 represents the moment when Buick's reputation for refinement met raw American muscle. Built at Flint during March of 1970, this car combines luxury, performance, and authenticity in a way few others from the era can match. It was sold new at Troy E. Fairchild Buick-Cadillac in Ashland, Kentucky and still carries its factory color combination of Burgundy Mist with a white painted top and Pearl White bucket seat interior.

The car's early history is well-documented and unusually complete. It was originally purchased new by the current owner's father and remained with the family for several years before being traded back through the same Kentucky dealership in the early 1970s. Decades later, it was located through a Buick enthusiast network and brought back into the family, where it underwent careful, as-needed restoration and preservation. - Read the full story from the letters included in images above - The result is a genuine GS Stage 1 that has been respected throughout its life rather than neglected or forgotten.

The exterior is finished in its correct Burgundy Mist with a contrasting painted white top, a color pairing verified by both the cowl tag and original documentation. The body lines are straight, the trim is bright, and every detail reflects Buick's subtle approach to performance styling. The hood tach carries a personal story, as it was inspired by the GTO Judge. The car's original owner purchased a Pontiac unit locally, had it painted to match, and installed it shortly after delivery. The GSX had yet to debut, making the addition a unique and personal touch that still connects the car to its original family today. Dual hood scoops and 15-inch Buick Rallye wheels wrapped in BFGoodrich Radial T/As complete its confident, period-correct presentation.

Power comes from a Buick 455 Stage 1 V8, installed during the 1980s using a genuine new old stock service replacement block. It's backed by what identifies as numbers-matching Turbo Hydra-Matic 400 automatic transmission sending power to a 10-bolt rear axle with 3.42 gearing and Positraction differential. Factory upgrades included higher-flow cylinder heads, a hotter cam, and revised carburetor calibration, all contributing to Buick's conservative rating of 360 horsepower and 510 lb-ft of torque. Features such as power steering, power front disc brakes, and factory air conditioning add the refinement that made the GS unique among its muscle car peers.

Inside, the cabin remains faithful to its original Pearl White vinyl bench seat configuration, accented by a black dash, woodgrain trim, and bright factory details that reflect Buick's focus on refinement. The presentation feels upscale yet purposeful, with correct instrumentation, an AM/FM radio, Rallye clock, and factory seat belts all in place. The original-style steering wheel, center console, and chrome accents provide the right contrast against the white upholstery, giving the interior a crisp, period-correct appearance. Everything fits the car's character, comfortable, well-finished, and unmistakably Buick.

Documentation is extensive and authentic. The car includes its window sticker, dealer invoice, build sheet, and supplemental ownership records that trace its history from new to present. Together, they verify the car's build, options, and provenance as a true factory Stage 1.

Beautifully finished, properly equipped, and supported by significant documentation, this 1970 GS Stage 1 captures the essence of Buick's muscle-era philosophy: power delivered with poise. Its factory color combination, authentic drivetrain, and continuous care make it a standout among surviving examples. For collectors who appreciate performance blended with sophistication, this GS represents one of the most complete expressions of Buick engineering from Detroit's golden age.

Key Highlights

* Factory Buick GS Stage 1
* Originally purchased new by owner's father
* Documented with original build sheet and dealership invoice
* Burgundy Mist with White painted top
* Pearl White vinyl interior
* 455ci Stage 1 V8 (360 hp/510 lb-ft)
* High lift camshaft
* Performance 4bbl carb
* Numbers-matching TH400 3-speed automatic transmission
* 10-bolt rear axle with 3.42 gearing
* Positraction differential
* Factory Air Conditioning
* Power steering
* Power brakes (front discs, rear drums)
* Tilt steering column
* Instrument gauges with Rallye clock
* AM/FM radio
* Known ownership history