As complicated as engines can be, they are remarkably resilient. When it comes to valvetrain stability, it's critical to get the tolerances correct for the utmost power and longevity. This means ...

Overhead cams are a more efficient method of actuating the valves than with a pushrod, but someone in Detroit never got the memo. And thank goodness they didn't. With production pushrod mills turning ...

An engine that just doesn't perform as it should at high speed on the dyno or racetrack can induce a series of checks that usually first includes measuring the pressure and volume of the fuel being ...