Though you could still order a Stage 1 455 in your GS in 1971, this one is the base offering 350 four-barrel. The smaller engine is not called out on the Buick’s flanks, so on the fenders ...

Buick also offered a slightly less serious GS trim line, which was available with the same 455 ci V8 engine as the GSX. This engine came with a Stage 1 option, which consisted of a higher 10.5:1 ...

The gallery shows the classic muscle Buick without the engine and transmission ... The real kick in the Gran Sport series came in 1970 when the GS 455 made landfall and pretty much battered ...

Chevrolet Chevelle Malibu 454 goes head-to-head against a low-key luxury hot rod, and they’re very, very close, but not at ...

Prices shown are the prices you can expect to pay for a 1972 Buick Gran Sport 2 Door Convertible (455 Stage I) across different levels of condition. Edit options.

Prices shown are the prices you can expect to pay for a 1970 Buick Gran Sport 2 Door Convertible (455, Stage I) across different levels of condition. Edit options.