Today's low-octane unleaded gas mandates a compression ratio reduction for '60s supercars. The easiest way to lower compression is usually to swap on late-model heads; not only do their larger ...

Hot rodding is a game of avoiding mistakes and taking advantage of the lessons of others. If you work on your car, you've probably run into situations where you wish there was a better way. Often you ...

While we like to think of 2002 as being part of a high-tech age, our beloved internal combustion engine hasn't really changed much in the last 50 years. We're still using pushrods and overhead valves, ...

Heavy-duty pickups and long-haul trucks rely on torquey diesel engines that are more economical, reliable, durable, and have a more straightforward construction than a comparable unleaded gas engine.

Swapping out the old, tired, or broken engine in your car can be useful if you're looking to keep a classic car running or if you're looking for more power. And for a long time in the Japanese ...

It's fair to assume that if you're currently building a high-performance engine, it's because you've pushed your engine to its limits, and the time has come for a rebuild. There isn't a universal set ...