Replica 1000cc Piston Set.010 Oversize - V-Twin 11-0209 - Ironhead 1972-1985

Replica style 3-3/16 inch bore piston set has a 9:1 compression ratio and is oversize.010. Piston set alloy is cast in a permanent steel mold and includes rings.

**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)