Replacement 80 Evolution moly coated piston kit. Pistons are .005 oversize. The moly coating helps reduce friction and wear. This kit includes wrist pins Hasting ring set locks and has a 10.5:1 compression. With a 3.498 bore. **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.
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REPLACEMENT PARTS