Harley Davidson Evolution Engine Upgrades

Many hours of research and development have gone into designing these upgrades using the most reliable parts available combined with expert workmanship.

Harley davidson evolution engine upgrades. Top 7 Performance Modifications. RayWheeler has many years of experience with our 124 engine upgrades on the street and at Bonneville. 55 to 65 HP Up to 750 Stage One Evolution Harley-Davidson engines involve no internal changes made to the engine.

Advanced Design Helped Reestablish Harley-Davidson Although the Evolutions engine design offered many advantages compared to previous Harley designs the most important upgrades improved reliability and durability. Baggers are meant to be comfortable on long distance mounts for mile after mile of touring. The following performance upgrades are proven dyno tested reliable means of increasing the output of your stock 80ci Evolution powered HD.

Twin Cam 88 95 96 103 and 110 CID engines Horsepower Gallery. In the Big Twin models the Evolution engine was offered only in the 82ci size. Evolution V-Twin Engines Manufactured between 1984 and 1999.

Displacement was 818 cubic inches 1340 cc and the engine produced 70 horsepower. This Stage Three engine requires internal changes to the engine. And for the sake of comparison and to better explain our menu of upgrade options and power gains expected it is worth noting that the most popular engine in the Harley range is the 96 Cube 1600 cc as it covers over 75.

Some special tools and training is required to perform these upgrades. I have 5 quick and easy upgrades tha. R.

R. This displacement provided more than enough power and torque for HDs bigger bikes. These are the before runs of several bikes.