- Stock Bore Stroker Flywheel Kit 84"
- Upgrades 74" and 80" Shovelhead engines to 84" displacement at approximately 8.4:1 or 7.3:1 compression (depending on pistons used)
- Includes a dynamically balanced 4-1/2" stroke flywheel assembly complete with S&S heavy-duty connecting rods and mainshafts
- Reuse the stock cylinders, saving cost and retaining stock appearance of the engine
- Minor crankcase and cylinder modifications are required that can easily be done with hand tools
- Kit requires special pistons which must be ordered separately (Contact S&S for required pistons)