Olds also used domed pistons for the engine, along with centrally mounted spark plugs, just like a traditional hemi. The 455-cubic inch W-43 was reportedly capable of an impressive 440 horsepower.
If you're interested in utilizing this HEMI for your next project build, you can source one from the used car market, a junkyard, or opt for a new crate engine version. The Genuine Mopar ...