One of the things that makes the Gen III family of engines so attractive is that they are very simple to work on. This month, we wanted to try just the addition of the GM Performance Parts Hot cam ...

"Streetability" be damned-this is an all out, big boy camshaft test for the diehard LS1 crowd. Our rules were simple: If it fits in a stock LS1 and you keep it on the shelf, we want to test it. Can it ...

While race-car performance is the goal of a large cross-section of enthusiasts, the key to completing a very powerful "Cam-Only" LS1 build is a delicate balance of both parts and tuning talent. As ...

If there is one performance limitation to hydraulic roller lifters it is the maximum rpm capability they can maintain in race applications. The internal hydraulics of standard roller lifters are ...