If you stop and think about it, one engine has made motorsports in the United States for nearly 50 years. The Offy was a great engine, as was the four-cam Ford. Who can forget the mighty Mopar hemis?

Not to sound like a parody of Jerry Seinfeld here, but what's the deal with all these identical-displacement V8s from different manufacturers? We've talked about the Ford 427 vs. the Chevy 427 before, ...