Hard to find rocker arms and shafts remanufactured by S&S. These high quality rocker components are the same as S&S uses in the KN- Series engines, and will fit stock Knucklehead engines as well since they feature the the stock 1:1 rocker ratio. Each complete set comprises four rocker arms, rocker shafts, washers, spacers and special O-ring seals. The shafts are also available separately but are not compatible with stock rocker arms.