S&S, M8 4-3/8" stroke flywheel assembly

- With full wristpin width connecting rods for use with S&S pistons
- With installed balancer gear
- Comes fully assembled with flywheels, connecting rods, connecting rod bearings, pinion and sprocket shaft
- 4-3/8" Stroke (107 or 124ci)
- 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
- Balanced for S&S Performance piston weight (1213g)
- Perfect for Gear Drive Cams
- Consistent balance & precision machining
- Capable of higher RPM for more available power!