Oldsmobile 4-4-2 W-30 versus Buick GS 455 Stage 1, A-body brothers each considered the “gentleman’s musclecar.” Sibling rivals when GM divisions competed.

GM's A-body platform arrived in time to participate in the muscle car revolution. Some became legends, but those that didn't are still worth remembering.

This American powerhouse wasn't the only surprise beast to come from Buick, though it set the stage moving forward for all muscle cars.

Buick may not be famous for muscle cars, but they sure did create some of the baddest rides of the Golden Age.

Shop Buick GS 455 vehicles in Springfield, MA for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 1 GS 455 models in Springfield, MA.

The Buick 455 V8 still holds significant status in the history books of American muscle. Here's what you need to know about the powerful engine.

Between 1967 and the infamous 1972, the ‘GS’ badge slapped on the grille, front fenders, and trunk lid of a Buick immediately spurred the drag strip itches in anyone coming across it.

The only engine available in the 1971 and 1972 Centurion was Buick’s 455-cubic-inch (7.5-liter) V8, renowned for its low-rpm torque. Power numbers for 1972 dropped considerably compared to 1971 ...

The muscle cars are back, this time with a 1972 Buick GS Stage 1 going head to head with a 1969 Plymouth Road Runner.