When most of us think about performance parts, roller rockers are usually not the first parts to come to mind. However, a good set of roller rocker arms can not only reduce friction, but also they are ...

One of the most common valvetrain upgrades for pushrod-style engines is roller rocker arms, which are often said to increase horsepower through reducing friction. But is it true? You’ll find out on ...

There are many styles of overhead-valve rocker arms: shaft-mount, pedestal-mount, and stud-mount. Sometimes the aftermarket will take an engine that came stock with a pedestal (like a 5.0L pushrod ...