S&S Cycle Big Bore Cylinder Set - M8 910-0739

Huge bore increase (4.320") means huge power increaseRetains stock engine heightPowder coat finish match factory finish, giving the bike a “sleeper” advantageWorks with stock crankcasesMLS...

S&S Cycle 136" Big Bore Cylinder Kit - Black - M8 910-0849

The Big Bore kit yields excellent results with stock cylinder headsEasy installation: no need to bore or split existing cases, just swap the cylindersCylinders are constructed from premium aluminum...

Features4.250" bore

S&S Cycle 136 " Big Bore Cylinder Kit -Black Granite/ Highlighted Fins - M8 910-0850