The typical four-stroke engine is made up of hundreds of parts. These parts are all designed and engineered to work together to make a prescribed amount of powe ...

We take a closer look at rocker arm and valvetrain geometry and how it effects cam design - Circle Track Magazine ...

The proper pushrods will not only put your rocker arm tip in the correct location on the valve, but may improve rocker arm-to-retainer clearance and pushrod interference, as well.