Available in standard only Top-end Kit includes: 3 SBT pistons 3 Rings 3 Wrist-Pins 3 Wrist-Pin Bearings 3 C-Clips 6 Washers 3 Base Gaskets 1 Head/Head Cover Gaskets/O-Rings Exhaust gasket(s). Additional purchase of Power valve rebuild kits (46-406) & lever links (46-406-14) are recommended.