Dec 11, 2025 · The Buick GS 455 was a significant muscle car produced from 1970 to 1972, marking the peak of Buick's performance offerings with its powerful 455 cubic-inch V8 engine, especially the …

The Buick Gran Sport 455 was a variant of the Buick Gran Sport that debuted for the 1970 model year. The Gran Sport 455, which was also known as the GS 455, was only offered in a coupe or …

Buick Gran Sport Classic cars for sale near near you by classic car dealers and private sellers on Classics on Autotrader. See prices, photos, and find dealers near you.

The 400 was replaced for 1970 with the Buick 455 cu in (7.5 L) V8 engine, used in the GS 455. The base model was rated at 350 bhp (355 PS; 261 kW) and 510 lb⋅ft (691 N⋅m; 71 kg⋅m) at 2800 rpm of …

Check out these 16 used Buick GS 455 for sale. Explore detailed pricing information, notable features, and ratings on classiccarsbay.com

Aug 9, 2025 · Discover the untold story of the 1970 Buick GS 455, a powerful and stylish muscle car that rivaled the best of its era.

Mar 17, 2025 · Available with a 315-hp, four-barrel 350-cid V-8 as the GS 350 or either the 350-hp or Stage 1 360-hp 455-cid V-8 as the GS 455, the midsize 1970 Gran Sports showed Buick’s wild side …

The 1970 Buick GS represents the pinnacle of Buick performance during the muscle car era. Since General Motors lifted the ban on greater than 400cid engines in mid size models Buick was quick to …

When GM came to their senses in 1970, opening up intermediates to the horsepower-pumping big-blocks, Buick jumped on a 455ci V8 to power their Gran Sport muscle car. The engine was such a...

The stock Buick 455 was a strong engine, offering a factory rated 360 horsepower and 510 lb. /ft. of torque but this GS takes things to the next level. Lift the hood and a deceptively stock-appearing bay …