GMC's Big-Block 478 V6 If you're interested in engines, especially big-power American engines, you likely know the term "big block" as it relates to muscle cars and especially V8 engines.

and that engine was signed by all the workers at the plant and is on its way to the GM Heritage Center in Sterling Heights, Michigan. The Big Block. Rat Motor. Call it what you will, we can now ...

The Chevy 454 big block V8 is an iconic powerhouse in American automotive history, and it sat under the hood of some absolute GM classics.