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 ...

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 ...

Photo: Mecum Auctions The GS Stage 1 was less flamboyant, as Buick offered the flashy ... non-Stage 1 455. However, the engine could deliver well over 400 hp when put on a dyno.

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.

Actual terms vary by lender. The Buick GS 455 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for ...

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