In some cases, you can find engines in used cars that perform as well or better than those in new cars. According to experts ...

If a new car is not an option, you could replace your car's failing engine with a used one, and if you're handy with a wrench, you might also consider buying a kit to build a new engine yourself.

In fact, an engine in today's Funny Cars must be wholly rebuilt (or replaced) after — are you ready for this? — just four seconds of open-throttle use. The origin of the name "funny car" isn't ...