Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

The camshaft orchestrates every intake and exhaust event in the engine, and a single worn lobe can kill power to an entire cylinder. Oil starvation during cold starts is responsible for a ...

We know that the LS engine family responds well to changes in cam timing and that, like every engine ever made, the LS also responds favorably to boost. The question isn't whether you can get power ...

The Chevrolet Corvette is the last true sports car to use a pushrod V8, and you might not think that's a good thing. After all, overhead-cam engines have been the standard for decades at this point, ...

An epidemic of cam failures has plagued owners of older cars recently. That part of the story is well established. The controversial part concerns the causes for the rash of prematurely worn camshaft ...

It's appropriate, we think, that a camshaft has lobes, since this relatively simple device is so often called the brains of an engine. And indeed, a camshaft does direct several engine functions in a ...