i have a cali custom motorcycle(fatboy) with a s&s 103ci engine...just trying to find out the hp on it anyone know?i just got the bike a week ago.......the last owner said it was a 103ci s&s ..but how can you tell what size is it?

 

Call cali custom and ask.

 

If you want to know the horsepower.... Go get a dyno.

 

S&S does not publish dyno info for this engine but I would expect it to output somewhere between 50 and 60 HP based on displacement and OHV/pushrood design.