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.

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 ...

Much of the Dodge's modern success can be attributed to thundering Hemi V8s under the hood of the Challenger, Charger, and other models. Likewise, much of the reason for its floundering sales today is ...