A bicuspid aortic valve is an aortic valve that only has two leaflets, instead of three. The aortic valve regulates blood flow from the heart into the aorta, the major blood vessel that brings blood to the body.
Only customers who have engine and performance work as well as a full dynometer run provided by Harley-DavidsonÂ® of Jamestown resulting in 100+ horsepower qualify to be an elite member of the Harley-DavidsonÂ® of Jamestown 100+ horsepower club. Stock Harley-DavidsonÂ® motorcycles are not qualified.
And because this motor runs cooler, Harley-Davidson has been able to increase its compression ratio from 9.6:1 to 10.1:1. Along with this increase and a change in the air box design, the High Output 103 offers, according to Harley-Davidson, around 10.7 percnt more peak torque than the standard 103 engine.