Hemi engines aren't perfect. Sorry. Half-grapefruit-shaped combustion chambers sure do let designers increase valve sizes, ...

Join me in my latest adventure as I attempt once more to fire up the innovative rotary valve engine! If you're just tuning in, catch up with my previous efforts at this link: <a href=" Your amazing ...

From the October 1987 issue of HOT ROD: Pontiac built this Pro Street 1987 Fiero to showcase its new high-performance four-cylinder and other new technologies.

Dart Big Chief heads for Pro Street are the same as those for a Pro Mod engine. For Annette's Camaro, Fulton uses a Comp Cams roller and nearly an inch of valve lift. See All 10 Photos ...

Don Morris an Aviation Technologies Professor at Southern Illinois University has created a range of intricate laser cut engine kits with fully functional gears, pistons, valves, and cams design ...

Ford is recalling more than 90,700 vehicles over an issue with the engine intake valves in vehicles equipped with its 2.7- or 3.0-liter Nano EcoBoost V-6 engines.

Valve has announced that the latest release of their Source Engine SDK has been released and that it now includes full support for the Oculud Rift Virtual Reality head mounted display.

Ford Motor Co. will recall 90,736 vehicles because engine intake valves in the vehicles may break while driving, the National Highway Traffic Safety Administration said on Saturday. The recall is ...