1000cc Piston Set.020 Oversize - V-Twin 11-0302 - Ironhead 1972-1985

Piston set 3-3/16 inch bore.020 oversize has a compression of 8.4:1. Set includes Hasting 3 piece rings 2 wrist pins and 4 circlips.

**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.

Fitment:

Installation instructions (PDF)