S&S CYCLE 129" Big Bore Kit - 4.375" Stroke - Black - M8 VERIFY PRICING 910-0844

Huge bore increase (4.320") means huge power increase Retains stock engine height Powder coat finish match factory finish, giving the bike a “sleeper” advantage Works with stock crankcases MLS (multi-layered steel) head gaskets Original engine serial numbers are retained Includes Cam Cover Badge