Adding real horsepower without tearing your car down to the firewall is not a fantasy. With the right mix of tuning, airflow, ...

Every motorhead dreams of squeezing a little more juice out of their engine, whether it is through simple upgrades like swapping their stock air filter for an aftermarket cold air intake or full-blown ...

Last month HPP introduced to the readers a '64 421 H.O. Tri-Power engine buildup being performed by Jim Taylor. The goal of the project is to try and find 100 additional horsepower in a cast-iron ...

Both Audi and BMW have long, storied histories of making powerful six-cylinder engines. However, one of BMW's best was also one that flies a little bit under the radar, particularly in the U.S. — the ...

The 7.3 Power Stroke turbodiesel has become an iconic engine that's considered by some to have heavily influenced diesel design. The 1994 Ford Super Duty was the first to showcase the 7.3-liter Power ...