Top-end Kit includes: 2 SBT Pistons 2 Ring Sets 2 Wrist-Pins 2 Wrist-Pin Bearings 2 C-Clips 1 Base Gasket 1 Water Jacket O-Ring Set Exhaust Gasket(s). NOTE: For 657X applications using OEM rods, you will need 25-105 Wrist Pin Bearings.
