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

Are you a history buff AND a Harley enthusiast? Then you’ll love this quick trip down memory lane from Shane Conley, who shares a video that not only goes through the history of Harley’s engines, but ...

Harley-Davidson crate engines are designed to deliver more horsepower and torque. Here are the best high-performance crate ...

TJ started writing for TopSpeed in 2015, but has been writing on motorcycle and automotive topics since 2009 for outlets such as eHow, eHowNow, and MotorTrend subsidiaries. He is certified to work on ...