61 Overhead Valve 3-5/16" Piston Set.020 Oversize - V-Twin 11-2751

Piston set with 3-5/16 inch bore has a 7.0:1 compression ratio and is.020 oversize. Set includes a piston ring set 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.

The deck compression height measures 1.645. **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: