S&S Cycle #320-0603 - Flywheel Assembly - 4-1/2" Stroke - Full Wrist Pin - 114"/117" M8

The flywheels are 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, the new cranks for the Milwaukee-Eight® platform are the best of the best to
build your high performance engine around.
FEATURES & BENEFITS4-1/2" Stroke (114 or 128ci)Balance Gear installedHeat Treated 4140 Material is harder & more than twice as strong as stockStronger assembly eliminates need to weld crankpinCapable of higher RPM - More available power!S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots and handle more power!Full width wristpin connecting rods (requires S&S Performance Pistons)Balanced for S&S Performance piston weight (1213g)Perfect for Gear Drive CamsConsistent balance & precision machiningCapable of higher RPM – More available power!

Fitment