The LSX engines are built with racing in mind, and the high-powered LSX-454 produces up to 627 hp. Of course, that type of performance doesn't come cheap as it can run you between $15,000 and $17,000.

Introduced in 1970, the Chevy 454 -- affectionately known as the Rat Motor -- was the largest displacement Chevrolet engine to enter the big-block engine showdown of the muscle car era.