VHM pistons are entirely CNC machined from high-quality materials and feature a non-circular profile to help prevent engine blockage. They guarantee high performance, longevity and continued high performance throughout their service life. This piston has an internal coating that reduces micro-welds, reduces friction on the pin, prevents seizure of the bore and ensures excellent heat conduction. What's more, this piston is fitted with special Z-clips that prevent the clips from turning and damaging the groove.