Wiseco’s standard piston kit includes Hastings X rings, two wrist pins, and four circlips. The Piston set is standard size with a 9.5:1 compression for a 3.498 bore. Pistons are forged from a high silicone alloy. 2009-UP XL 883 cylinders cannot be overboard to 1200cc. 2009-UP applications will require a separate purchase of 1200cc cylinders to be used with the piston kit. **Note: Run the engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears to properly break in new pistons and rings.
- 1986 / 2003 XL
- 2009-Up models must use 1200CC XL cylinders.
- Piston: 3.4965