This engine was believed to have come from a 1998 Jeep Grand Cherokee, where it was rated at about 195 horsepower.

The old engine is legendary for its simplicity, strength, and reliability. But a botched rebuild caused this one to catastrophically fail.

In the new big-boy Wagoneer Ls, this 3.0-liter inline-six, dubbed "Hurricane," has its work cut out: The huge SUVs weigh nearly four tons, and are expected to tow up to 10,000 pounds, too. Powerful ...

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 ...

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 ...

It’s well known that, years ago, some genius at AMC decided it would be a good idea to put plastic valve covers on Jeep 4.2L (258ci) engines. Unfortunately, it didn’t take long for them to start ...

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 ...