Description
If you’re serious about extracting more power from your Twin Cam engine, a big bore kit is one of the most direct paths to increased displacement and performance. The S&S Cycle 910-0221 delivers measurable gains while keeping installation straightforward—no case splitting required. With premium cast-iron lined cylinders and a complete gasket set included, you get everything needed for a professional rebuild.
- Displacement: Big bore increase
- Cylinders: Premium aluminum castings
- Liners: Cast-in iron
- Included: Pistons, rings, gaskets
- Installation: Bolt-on cylinder swap
- Case work: No boring required
- Finish: Black or silver powder-coat
- Compatibility: Twin Cam engines
- Origin: Made in U.S.A.
- Assembly: Requires skilled technician
- MPN: 910-0221
