The most powerful muscle car of the 1970s technically came from Buick, as the automaker built two prototypes for its 1970 GS 455 with a Stage 2 performance package. As an even more potent follow ...

So, without further ado, let's start with the 1970 Olds 4-4-2 W-30 versus the 1970 Buick GS Stage 1 ... the 4-4-2 hid a second-gen, tall-deck 455-ci (7.6-liter) Oldsmobile Rocket V8 that could ...

The engine appeared in several models, including the Estate, Electra, and Riviera, but perhaps the luckiest recipient of the 455 was the Buick Skylark Gran Sport (shortened to GS on its badging ...