This piston is for use with the VHM long rod.
The vhm long conrod and piston kit improve the power out put of the engine in the area of mid to top rpm, This is a very high quality race part
This head comes complete with a insert for either the stock or VHM 12 degree piston. The pro kit includes a insert to work with the 12 degree piston from VHM which is supplied with the head. Extra pistons can be purchased.
VHM insert. The combustion chamber fits the VHM cylinder head perfectly and is easy to change. The last numbers of the part number are engraved on the insert for identification.
This piston is for race use only, 39.46mm The crown on this piston is 1.5mm lower than the standard piston height and as such requires the VHM head with special insert. Comes complete with ring, pin & clips.
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