Two-stroke engines have their uses, but they are seen as environmentally unfriendly today. But why do they have that reputation, and is it deserved?

A 6.7L Power Stroke teardown uncovers shocking internal damage hidden inside a 200K-mile Ford F-250 diesel bought at auction.

1,000 horsepower is reasonably common now, but it would have been absolutely mind-blowing in the 1920s — and this British ...

RealTruck.com reports on the latest truck accessories, featuring new products to enhance vehicle performance and style.

What makes a diesel engine different to a regular gas engine, and is one better than the other?

While you'll commonly see inline-fours, V6s, or V8s today, a few oddball cars in the past have boasted V4 engines that allowed for unique designs.

Harley-Davidson's Milwaukee-Eight engine has two spark plugs per cylinder. It's all about boosting performance, efficiency, ...

Every car engine has quite a few details, ranging from cylinder count to compression ratios. How does changing the compression ratio affect the engine?

Despite its critics and moves toward electrification, the internal combustion engine is not yet dead. Though its design for passenger vehicles may have begun to reach its apex with Mazda’s Skyactiv ...

The Better Half VW conversion produces approximately 30 horsepower at 3400 rpm with standard 92mm cylinders, though builders can increase power to 37 horsepower or more by using larger bore cylinders.

The story of the most over-engineered Honda motorcycle ever made.

Inline-fours offer smoother operation and reliability; three-cylinders are lighter and more efficient.