Replica 1000cc Piston Set.070 Oversize - V-Twin 11-0430 - Ironhead 1972-1985

Replica piston set has a 3-3/16 inch bore and is.070 oversize. Set has a compression ratio of 8.4:1 and includes Hasting 3 piece ring set 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)