- +30% increase in HP and torque over stock
- Short stroke for less vibration and longer engine life
- Shorter than stock engine height for easy installation
- Does not include carb or ignition; use stock or aftermarket carburetor and air cleaner
- High volume, high-pressure (HVHP) oil pump
- Durable S&S 3-pc. flywheels
- Performance 585 cam & valve springs
- 4-1/8" x 4-1/8" bore and stroke
- 9.8:1 compression ratio
- Black Edition, includes all the features of standard S&S engines, with gloss black engine covers in place of the standard chrome covers
- Made in the U.S.A.