What is it....details please!

[palace15]

Hopefully I have posted this under the correct section of the forums! My friend purchased a 230cc OHV (pushrod) engine from CCM motorcycles, it is believed that The CCM badged 2009 engines are now OHC motors, does any one know who the maker is of these? different forums I have read have conflicting info, some 'posters' say its 6 speed when in fact its only 5, others have even said its a direct copy of the CRF Honda 230, but the CRF is definately a OHC(as I own one!).
Any help and info would be very much appreciated, especially to this engines reliability.
He is in the process of slotting it into a Honda XR250 chassis, and I am interested in replacing my XLR125 Honda engine with one of these beauties!
Many thanks in anticipation.
Dave