S&S M8 Big Bore 129" Black Cylinders 4.375 Stroke Pistons Top End Kit Harley 17+
Designer: S&S Cycle
- Regular
- $2,130.00
- Sale
- $2,130.00
- Regular
Sold Out
- Unit Price
- per
SKU
910-0844
Free delivery to the Lower 48 States
30 Day Returns and Exchanges
Fitmet Questions? Call us at 610-754-8500
BRAND NEW
PART # 910-0844
Fits 2017+ Harley Softail and Touring Models
We love raw, unadulterated thumping, makes your heart skip a beat kind of power, and that’s the very stuff we specialize in.
This obsession with power is further proven by our latest efforts for the Milwaukee Eight powered Harley-Davidson® models.
These bolt-in 129 Cubic Inch (that’s well over 2000cc for you metric folks) Big Bore Kits are just this side of monstrous.
Taking the stock engine from a mild-mannered 107 CI to a fire-breathing 129 CI or the 114 CI models to 132 cubic inches of tire melting power.
The latest is a 4.32” bore and is slated for an 11:1 compression ratio, so it’s happy with pump gas but will still compliment a high lift cam. No case mods and no engine removal; just a massive set of jugs designed, tested, and manufactured here in the USA.
The biggest Big Bore possible with a slip in kit! These S&S cylinder and piston kits takes your 107" M8 to 129" and the 114" to 132".
Huge bore increase (4.320") means huge power increase
Works with stock crankcases
Original engine serial numbers are retained
Powder coat finish match factory finish, giving the bike a “sleeper” advantage
MLS (multi-layered steel) head gaskets
Retains stock engine height
Includes Cam Cover Badge
PART # 910-0844
Fits 2017+ Harley Softail and Touring Models
We love raw, unadulterated thumping, makes your heart skip a beat kind of power, and that’s the very stuff we specialize in.
This obsession with power is further proven by our latest efforts for the Milwaukee Eight powered Harley-Davidson® models.
These bolt-in 129 Cubic Inch (that’s well over 2000cc for you metric folks) Big Bore Kits are just this side of monstrous.
Taking the stock engine from a mild-mannered 107 CI to a fire-breathing 129 CI or the 114 CI models to 132 cubic inches of tire melting power.
The latest is a 4.32” bore and is slated for an 11:1 compression ratio, so it’s happy with pump gas but will still compliment a high lift cam. No case mods and no engine removal; just a massive set of jugs designed, tested, and manufactured here in the USA.
The biggest Big Bore possible with a slip in kit! These S&S cylinder and piston kits takes your 107" M8 to 129" and the 114" to 132".
Huge bore increase (4.320") means huge power increase
Works with stock crankcases
Original engine serial numbers are retained
Powder coat finish match factory finish, giving the bike a “sleeper” advantage
MLS (multi-layered steel) head gaskets
Retains stock engine height
Includes Cam Cover Badge