The rocker arm employs the use of a fulcrum or pivot to increase the cam lift by a given ratio. That increase in lift is the result of moving the pushrod pivot point closer to the fulcrum. That ...

Things can get messy when your chopper dream collides head-on with chopper reality. It's easy to fall in love with a chopper's bad-ass style and muscular charm, until you twist the throttle and careen ...

Pushrods convert the vertical motion of the lifter from the camshaft lobe into valve movement. A V8 engine takes advantage of that by centrally locating a single camshaft in the middle of the engine ...