11-0231 - 80 Evolution Piston Kit

Replacement 80 inch Evolution piston kit. Pistons are standard size. Our kit includes 2 cast alloy pistons Hasting ring set wrist pins and 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. *NOTE: Install pistons with raised bars or on wrist pin area towards the sprocket shaft side of the engine.