The Harley-Davidson Twin Cam engine was first manufactured in 1999, and remains the current design for all Big Twin Harleys. Today, approximately 2 million Twin Cams are out there and many of them need work. Even for those that don't, most Harley riders are looking for "just a little more

For anyone planning to get a little--or a lot--more power from their Twin Cam, this book presents combinations of parts that work together to provide the maximum power for the least amount of money.

This book from Wolfgang Publications shows how and why of performance engine building with 500 color photos. Not a what-to-buy-book - it's a how-to-build book. Take advantage of the knowledge shared by the R&R Cycles crew.

With the introduction of the new Harley-Davidson Twin-Cam, enthusiasts need a hop-up and repair guide that addresses both the new powerplant and its predecessor, the Evolution engine. Divided into two sections, this new manual describes and illustrates options for improving the performance and reliability of both. Each section begins with

Donny is the Winner of the 2012 International Book Awards. Donny Petersen offers the real deal in performancing your Harley-Davidson Twin Cam. Graphics, pictures, and charts guide the reader on a sure-footed journey to a thorough H-D Twin Cam performance understanding. Petersen's insight makes technical issues understandable even for the