Harley Davidson Evolution Vs Twin Cam

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Harley davidson evolution vs twin cam. This engine is not to be confused with the Sportster Evo same name different engine Twin Cam 1999-present There are 88-ci 96-ci 103-ci and 110-ci versions. There are some clear differences between the engines. As a result their design focuses on giving superb power accuracy and performance.

The larger Evolution engine however was replaced by the Twin Cam 88 engine in 1999. Its also a much larger displacement. 2001 Harley Twin Cam B Softail Carbed complete 36k miles BlackChrome 1500.

Lemmy at Revzilla broke down all the improvements on this here. The Harley-Davidson Twin-Cam V-twin was introduced in 1998. However the TC 88 has a better lifter design.

They are also called Evolution or Evo. And then there is that heat issue. I figure with this lift and the shorter duration on the intake it should make good power and torque in the lower and mid range.

It has the same basic one cam design the same layout of the breathing and oiling it is just an evolution of the design of the founders. The engine design is often credited with saving Harley-Davidson from bankruptcy after the management buyout and subsequent reorganization that the company went through during the early 1980s. For Twin Cam 88 engine information look for the TC88 label next to the horsepower number.

Harley-Davidson Twin Cam 88 and EVOLUTION engines. 80 vs 96 103 110 Cases is stronger especially regarding cylinder studs and in the casting where the inner cam bearings sit where the Evo cracks. The small Evolution engine permanently replaced the Ironhead engine and as of November 2010 is still being produced by the Harley-Davidson motorcycle company.