The motor chosen as the foundation of this horsepower enormity was Oldsmobile’s trusty 455 V8 – with several mods to make it apt for the job. The main feature of the engine, codename W-43 ...

However, in the late 1960s, Oldsmobile engineers were hard at work creating an engine that would come to be known as "The Killer." Based on the existing 455-CID V8 Only two examples were produced ...