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.

Pushrod engines may not be high-tech by today's standards, but they soldier on and have benefits of their own. One downfall, however, is their ability to rev. Pushrod engines tend to have rather low ...

General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its next generation of pushrod engines.

The camshaft is essential to an engine's operation and efficiency in the intricate world of automobile engineering. Engine enthusiasts and professionals often ask, "What is a camshaft ?". This ...

Last month you read about a naturally aspirated Two-Valve engine that gained 28 rwhp without sacrificing any of the car's street manners. The Trick Flow Specialties camshafts made the idle sound ...

Ford fans do not argue about much more fiercely than they do about pushrod versus modular V8s, because that split defines not just different engines but different eras of Mustang and truck performance ...

It's been all the talk on internet forums, club meeting hangouts, and in enthusiast garages across the nation—the loss of zinc and other protective "barrier" chemicals in modern oil damaging ...