GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

In the valvetrain of your typical pushrod engine, the rocker arm is a critical component that also is an excellent tuning device. To properly tune with rocker arms, though, you need to understand how ...

A small gap with big importance in the performance and health of an engine - here's everything you need to know.

The horsepower game is all about escalation. Everyone knows that the LS engines are the easiest path to big horsepower. But that also means bigger cams and higher engine speeds, and all that puts a ...

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 power, torque, engine longevity, and other ...

Pace Performance is back at it, this time with the introduction of its heavy-duty trunnion sets for LS engine rockers. Designed specifically to increase durability and load capacity, Pace Performance ...