Special setup for more top power and overrev. The cylinder must be raised by 0.30mm with an extra base gasket. There are three different compression ratio inserts available high, mid and low compression. The characteristic feeling for the power delivery will be from agressive to smooth. For use check the insert chart table. 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.
Use in combination with VHM head AA33210, OEM cylinder base gasket + extra cylinder base gasket S410270006135
Use the insert chart as a general guideline to select the insert depending on the fuel, track and elevation.
- More top power and overrev
- For use see insert chart table
- Quick to adjust
The insert does not fit into an OEM head, only a VHM cylinder head. Use in combination with VHM head AA33210, OEM cylinder base gasket + extra cylinder base gasket S410270006135 (Total 0.50+0.30= 0.80mm).
