محرك صاروخي
Oldsmobile once again was a pioneer when, for the 1949 model, the Rocket engine was introduced, which used an overhead valve V8 design rather than the flathead "straight-eight" design which prevailed at the time. The overhead valve was originally exclusive to Buick as they invented the technology and offered it on all of their products. This engine produced far more power than the other engines that were popular during that era, and found favor with hot-rodders and stock car racers. The basic design, with a few minor changes, endured until Oldsmobile redesigned its V8 engines in the mid-1960s.