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1972 Buick GS Stage 1
The 1972 Buick GS Stage 1 was a factory Gran Sport performance configuration built around Buick's 455-cubic-inch V-8. Buick references identify the engine with the WS production code and the V fifth VIN character. The GS was available as the 4G37 two-door hardtop and 4G67 convertible, with reported Stage 1 production of 728 hardtops and 81 convertibles.
The 1972 Stage 1 used a four-barrel carburetor, 8.5:1 compression, and a 270-hp SAE net rating with 390 lb-ft of torque. Buyers could pair it with a Turbo Hydra-Matic 400 automatic or a floor-shifted four-speed manual. Positive Traction and a 3.42:1 axle ratio are reported for the Stage 1 combination.
Buick's 1972 paint and trim charts document a broad range of colors, stripe combinations, seat trims, consoles, gauges, and wheels. Those charts show what was available, but an individual car's VIN, body plate, engine stamp, build sheet, window sticker, and other paperwork determine how it was originally built. Power front discs are documented on representative Stage 1 cars and in Buick option references, while the exact standard-versus-optional brake rule still needs a 1972 dealer order guide.