At the heart of every great Harley-Davidson motorcycle is the engine -- here we've got 10 of the greatest of all time.

The AMF years may not be fondly remembered by all Harley-Davidson enthusiasts, but plenty of memorable models still came out of this divisive era.

As car enthusiasts, we often believe that cars are more than just machines — that they carry a soul and even a part of us inside. We often draw parallels between a car's engine and the human heart, ...

Delta Air Lines said it is replacing auxiliary power units (APUs), a type of engine, on its Airbus aircraft to address toxic fume incidents that can harm airline crew and passengers. The airline ...

Engine manufacturer Pratt & Whitney will use new digital design technology to accelerate its work on the XA103, its submission for the U.S. Air Force’s Next Generation Adaptive Propulsion (NGAP) ...

Northrop Grumman's Cygnus XL cargo ship, carrying more than 11,000 pounds of equipment and supplies for the International Space Station, is scheduled to rendezvous with the space station Thursday ...

A Swiss International Air Lines flight departing for Zurich, Switzerland, had to abort takeoff from Boston Logan International Airport after flames were seen shooting out of its engines. A video shows ...

Sept 24 (Reuters) - Activist investor Engine Capital has urged Acadia Healthcare (ACHC.O), opens new tab to add directors to its board and explore a potential asset sale to fund buybacks, sending the ...

Currently, the Chevy LCF (Low Cab Forward) 6500 and 7500 series trucks are available exclusively with diesel power, cradling the Cummins B6.7L, a turbocharged six-cylinder engine rated at 260 ...

A small plane that crashed near Denver and killed both pilots on board in early September had an engine malfunction in midair, according to preliminary reports released by investigators. One of the ...

In addition, replacing all those mechanical parts makes the engine cheaper – an important point with what is essentially a disposable power plant. For testing, the engine installed in the ATLAS Flight ...