One of the handy items about LS engines is that they offer a plastic hydraulic guide that positions the lifter over the roller cam. This holder can also trap the lifter in the up position to allow ...

GM's LS engine is a powerhouse, thanks to great-flowing heads that enable tremendous horsepower and high-rpm performance. But while the LS is becoming a more popular swap choice for earlier, pre-C5 ...

Now that the LS has burrowed deeply into just about every facet of Chevrolet performance, making power means spinning wrenches and swapping parts. That's where the power theory runs right into ...