Tick. Tick. Tick. That's the sound our Ford 4.0-liter, over-head valve (OHV) engine was making in our 1991 Ford Explorer after 250,000 miles. The Ford 4.0L V-6 engines, built in Germany, are found in ...

The popularity of various engine designs typically fades over time as technological advances provide more power, better fuel economy, or both. Flathead designs gave way to overhead valves, and inline ...

When put to the test, just about anyone can recall what the engine of a mid-60s Ford Cobra used for racing looked like. Typically topped with a pair of four-barrel carbs or, even better, a set of four ...