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 ...

Four-cylinder engines have been part of the automotive scene for over a century. Yet the quest for more power under the hood dominated most of the 20th century, giving rise to six- and eight-cylinder ...

Four-cylinder engines are usually associated with efficiency and compact packaging, yet a handful of engineers have stretched the format to astonishing sizes. The five engines below represent some of ...

While electric and hybrid power trains are leading in the performance race, when it comes to pure internal combustion engines, you'd think the only way to achieve horsepower heaven would be to get a ...

In most cases, the number of spark plugs in a gasoline engine is typically represented by the number of its cylinders. For instance, it's perfectly normal for a V8 engine to have eight spark plugs, a ...

Even if you're not an automotive enthusiast, you may have noticed in recent years that more and more vehicles have a four-cylinder engine under the hood, including larger cars and SUVs. Automakers ...