Harley S & S Cycle Power Pack Big Bore Kit 17-21 M 8 Touring Softail. The description of this item has been automatically translated.
No machining on the motor housing necessary. 4.250 (10.8 cm) bore.
Precision machined from billet aluminum. Drain plug removable for maintenance. A magnet in the camshaft housing prevents dirt from entering the oil pump. More oil flow capacity on the supply and return side. The pressure relief valve can be adjusted when installed.
The material is stronger than the original and eliminates deformation. Improves the stability of the tappets at high stroke positions and high speeds.
S&S 550 cam - designed for big bore applications. Suitable for camshafts with a stroke of up to 0.605.
Conical high performance springs made from a single wire. Suitable for the following Harley models. Electra Glide Ultra Classic EFI FLHTCUI. Softail Fat Bob 114 FXFBS. Softail Heritage Classic 114 FLHCS.
Softail Fat Boy 114 FLFBS. CVO Road Glide Custom FLTRXSE. Electra Glide Standard EFI FLHTI.
Softail Low Rider S FXLRS. Suitable for the following Harley models: Electra G.