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?

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

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

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.

Take a look at Honda's legendary four-cylinder engine that reset motorcycle performance, pricing, refinement, and engineering ...

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 internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons rising and falling, a crankshaft spinning, a steam-age architecture ...

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

From Toyota's 22R-E to Volvo's legendary 'Redblock,' these engines showcase the strength and longevity of compact powerplants ...

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 ...

From freeway torque to timeless design, the Heritage Classic proves you can buy passion and lifestyle for the price of a used ...