S&S CYCLE Big Bore Cylinder Kit — Bore 4.320", 129 cu in – 17-23 Touring, 17-23 CVO
directions_bike
SELECT YOUR VEHICLE TO VERIFY THE FITMENT
- Retains original engine serial numbers
- MLS (Multi-Layered Steel) head gaskets
- Retains stock engine height and bolt pattern
- Works with stock crankcase
- Not compatible with VVT models