The 1970 Buick GS Stage 1 was one of the last full-powered boulevard bruisers built. For General Motors, the ultimate year of the Muscle Car wars was 1970, as emissions regulations, insurance companies that balked at monstrous horsepower ratings, and fuel economy standards all culminated in the death of big power GM muscle cars.
Rated at 360 horsepower (it is rumored that 420 was much closer to the truth) and 510 pound-feet of torque, the 1970 Buick GS Stage 1 was a performance monster. Under the hood was a 455 cubic-inch behemoth. In January of 1970, Motor Trend magazine tested a 1970 Buick GS Stage 1, and managed an impressive 13.38-second quarter mile pass at 105.50 miles per hour. Pretty heady stuff from a stock passenger car with bias-ply tires.
Our feature car is a 1970 Buick GS Stage 1 convertible in code 48 Sherwood Green with a white convertible top and black vinyl bench seat interior. It has its original numbers-matching drivetrain, a 455 cubic-inch V8 and Muncie M21 four-speed manual transmission. It is one of only sixty-seven four-speed Stage 1 convertibles ever built, and has been the subject of a fastidious concours restoration. Ordered new from Francher Buick of Dunkirk, New York, it is equipped with power steering, power brakes, Sonomatic Radio, rear speaker, tinted windshield, factory mats, protective side moldings, a Rallye steering wheel, and Super Sport Wheels.
This Buick GS has a laser-straight body with consistent body panel gaps throughout. The Sherwood Green finish has exceptional gloss. Chrome bumpers and stainless trim are both well-polished and brilliant. The glass is crystal clear, with no signs of wiper tracks or road pepper. Original Rally wheels present well, and are shod with original-style raised white-letter bias-ply tires.
The engine bay of the Buick GS is spotlessly clean and factory correct. The original 455 cube V8 looks showroom fresh, painted in bright red. The foam intake surrounds show only minor crushing from the cowl induction hood. All paint finishes appear to be proper in Satin Black, and the firewall has been properly marked. The battery looks as it did from the factory, courtesy of a Delco battery topper.
Inside the Buick GS is the correct black vinyl covering the front and rear bench seats. No wear is visible in this freshly restored interior. The carpet is as new, protected by Buick shield embossed floor mats. A Hurst shifter is topped with a black shift ball.
This Buick GS Stage 1 convertible is offered by Legendary Motor Cars for $185,000.