Description
S&S 910-0849 136″ Cylinder Kit All Black for 2017-up M8 Models
The biggest just got bigger! 136 cubic inches of bolt-on power in this cylinder and piston kit.
- Biggest bolt-on kit we have ever offered
- Works with stock crankcases
- Original engine serial numbers are retained
- MLS (multi-layered steel) head gaskets
- Retains stock engine height
- Includes Cam Cover Badge
- Powder coat finish matches factory finish, giving the bike a “sleeper” advantage
- Huge displacement increase (4.320″ Bore) means a huge power increase
NOTE: Requires 4 5/8″ Stroker Crank (part # 320-0605)
Important Information (MUST READ):
*A ThunderMax Autotune System is highly recommended for this product if you do not already have an aftermarket tuner. If you have one already, we can also provide you a recommended base map if you purchase this kit.*







