Overview of S&S Cycle 89" Crankshaft Flywheel Assembly - 32-2230
- This S&S 89" stock bore stroker kit upgrades carbureted 80" HD 80 Evolution big twin engines to 89" displacement at approximately 9.25:1 compression
- Made of high-strength forged steel and designed for stock and high-performance custom applications
- Special keyed 6° large diameter taper sprocket shaft that provides more contact area for increased strength
- Standard S&S tapered crankpin and pinion shaft are used for ease of service
- 8-1/2" diameter with 4-5/8" stroke
- Includes a dynamically balanced 4-5/8" stroke flywheel assembly complete with S&S heavy duty connecting rods, mainshafts and crankpin
- Stock bore stroker kits 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
- This kit requires special pistons which must be ordered separately depending on the oversize required for the stock cylinders
- Pistons are available for stock or S&S Performance Replacement cylinder heads or for S&S Super Stock cylinder heads.
- Made in the U.S.A.
NOTE: 90-99 applications will require pinion shaft conversion kit PART #148910
(1) Flywheel assembly
Specs for S&S Cycle 89" Crankshaft Flywheel Assembly - 32-2230
Alternate/OEM Part Number(s):