The Harley-Davidson Twin Cam 88 engine was released for the 1999 model year in September
1998. The Harley-Davidson Twin Cam 96 was released for the 2007 model year.
Although these engines were the successors to the Evolution engine ("Evo"),
they share a number of characteristics with nearly all previous Harley-Davidson
engines. Both engines have two cylinders in a V-twin configuration at 45 degrees,
are air-cooled, and control valve timing with push-rods. The crankshafts
have a single pin with a tongue and fork arrangement for the connection rods. These
are sandwiched between a pair of flywheels. |
