Technical information on engines for Harley-Davidson motorcycles.
This is a list of verified horsepower figures for a variety of
Sportster Unlimited Displacement Engines. The list provides information on the maximum
horsepower recorded, the type of engine cases, the engine displacement in cubic inches
(CID), head type with who did the modifications, type of camshaft, type of carburetor,
type exhaust system, owner of the bike, the type of frame the engine was mounted in and
the source of the data. Data sources used in building this list include Cycle-Rama, AMI,
and various magazines. All horsepower figures listed here were confirmed on a dynamometer.
To have your bike listed here, send a copy of your dyno
sheet data along with the other information listed in the Horsepower Gallery to us at the V-Twin Café.