11-9891 - Forged .010 9:1 Compression Piston Kit

Wiseco piston set is .010 oversize and has a compression of 9:1. Piston set includes Hasting X rings 2 wrist pins and 4 circlips. Pistons are forged from high silicone alloy. **Note: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.