When the Twin Cam 88® Engine was introduced for the 1999 model year, it took the motorcycling world by storm and turned the page on a new chapter in Motor Company history. With the Twin Cam Engine Program, you can get your own piece of Harley history by owning the most technologically advanced air-cooled V-Twin engine on the market. Available in 88CI, 96CI, 103CI and 110CI configurations, these engines are street-legal when installed in the models specified. Manufactued to the latest specifications, these engines are available in a variety of finishes to suit your customizing direction. See your local Harley-Davidson® dealer for details.