4-3/8in. Stroke Flywheel Assembly. Fits 107ci Milwaukee-Eight 2017up.

Product Details







The Crankshaft is the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of, our new crankshaft assemblies for the Milwaukee-Eight platform are the best of the best to build your high performance engine around.* 4-3/8? Stroke (Stock in 107ci engines)* Tapered Wristpin for OEM style pistons* Heat Treated 4140 Material is harder & more than twice as strong as stock* Stronger assembly eliminates need to weld crankpin* S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots and handle more power!* Perfect for Gear Drive Cams* Consistent balance & precision machining* Capable of higher RPM – More available power!* Includes Balancer Gear (can be removed)* Replaces OEM # 24100057Proudly Made in the USA by S&S Cycle !Tech Tips:-The balancer gear CAN be removed!Suggest Additional Purchase:Main Bearing x 2 SS310-0593
MFR PART No: 320-0601

ROLLIES PART No: SS320-0601






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