Not so many years ago, roller cams were considered exotic, race engine fare. But today, new small-block Chevys are produced by the thousands every day with hydraulic-roller cams. The factories build ...

The vast majority of gearheads fall into two categories when it comes to choosing a camshaft: those who go too big, low-end torque and driveability be damned; and those who go too small, ensuring good ...

With the availability and efficiency of roller camshafts it’s a no-brainer to use a hydraulic roller setup even on the simplest of engine combinations. The roller lifters take a lot of load off of the ...

In 20 years, the hydraulic roller lifter has gone from a hot rodding oddity, to plain vanilla common fare. In those 20 years, one aspect that's changed very little is the rpm capability of the basic ...

Generally, hydraulic and pneumatic motors are organized along similar principles. The internal engineering of each is quite different, but the operating philosophies are very similar. Axial-piston ...