1970 Buick GSX hardtop coupe. See more pictures of Buicks.
The GS400 continued as before,
augmented at mid-1968 model year by the hot Stage I option for the big-block,
which included a high-lift cam, reworked carb, and free-flow exhaust system.
For 1970, GM rescinded its unwritten ban on intermediates with less than 10 pounds per horsepower, so Buick bolted in its big-car 455 V-8. The GS350 became just plain GS. A mid-season arrival was the GSX, an $888 package option featuring front and rear spoilers, striping, hood-mounted tach, and four-speed manual transmission.
Power began to be watered down starting in 1971, but a Stage 1 455 could still scamper from rest to 60 mph in 6.5 seconds. The GSX was dropped for 1972, but the 455 carried on, now rated in SAE net horsepower figures.
A new-generation Buick intermediate, the Century, debuted for '73. The GS reverted to being a package option, convertibles disappeared, and appearance was more subdued, but it was still fairly hot.
However, we think the desirable Buick muscle cars end with the '72s. The low-production convertibles became much sought-after during the Eighties.
Pluses of the 1968-1972 Buick GS:
- Handsome looks
- Great performance
- Capable handling
- Rag-tops' rarity
- Atypical models for Buick
Minuses of the 1968-1972 Buick GS:
- As for the 1965-1967 Skylark Gran Sport
Production of the1968-1972 Buick GS:
- 1968: GS350 2d htp 10,530; GS400 2d htp 10,743; GS400 conv 2,454
- 1969: GS350 2d htp 4,933; GS400 2d htp 6,456; GS400 conv 1,776
- 1970: GS 2d htp 9,948; GS455 2d htp 8,732; GS455 conv 1,416
- 1971: GS 2d htp 8,268; conv 902
- 1972: GS 2d htp 7,723; conv 852
Specifications of the 1968-1972 Buick GS:
Wheelbase, inches: 112.0
Length, inches: 200.7 (1968-1970), 203.3 (1971-1972)
Weight, pounds: 3,375-3,700
Price, new: $2,926-$5,350
Engines for the 1968-1972 Buick GS:
|Type||Size ||Horsepower ||Years |
|ohv V-8||350 cid||280||1968-1972|
|ohv V-8||400 cid||340/360||1968-1969|
|ohv V-8||455 cid||315-360*||1970-1972|
*Rated at 250 bhp SAE net in 1972; Stage I rated at 270 bhp net
Want more information about classic cars? See:
- Classic Cars
- Buick Muscle Cars
- Muscle Cars
- Sports Cars
- Consumer Guide Auto
- Consumer Guide Auto Used Car Search