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.

There are, however, some equally as kickass engines from American muscle cars and performance history that have flown under ...

Strange engine configurations that never reached production always makes for interesting reading. Here are our favorites.

Under the hood resides a surprising 394 four-barrel engine, a deviation from the expected 330-cube V8 typically found in this model. Given the car’s preserved condition, this engine discrepancy is ...

The Oldsmobile Cutlass was not the success some hoped it would be, owed in part to the decision to include a subpar diesel-converted engine.

Oldsmobile's best engines powered some of the brand's most famous and beloved cars, defining an era of classic American muscle.

The 394 was the only engine available on the 1964 Starfire. Oldsmobile launched a 425 on the 1965 model year, upgrading the maximum power to 375 horsepower.

The 394 cubic-inch V8 engine has never been apart, except for the top end to replace seals, while the cooling system has been upgraded with a four core radiator, fan shroud and fan clutch.Photo by ...

They haven't tried to start the engine, so the next buyer will have the opportunity to breathe new life into an otherwise great classic. The Oldsmobile 88 rolled off the assembly lines with a 394 ...

Oldsmobile and Chevrolet pioneered the technology for mass-market cars, but the turbos flopped — and took decades to gain acceptance.

Returning to production for its fifteenth anniversary, the 1983 Hurst/Olds had a unique paint scheme, chrome wheels, and Hurst's Lightning Rod shifters.

Oldsmobile 455: It’s all in the cam Oldsmobile (along with Cadillac) was the first, in 1949, to seize upon the idea of high-compression V-8s. This first series of Rocket V-8s lasted through 1964, ...