RE: Chosing a New Engine OS, Magnum, Thunder Tiger
Why didn't someone suggest just putting the Magnum 46xls piston and liner in the OS 46fx. It is a perfect fit and only costs $33.
I have done this to three 46fx engines that peeled there liner and they run great. All run a master airscrew 11 X 6 props in the
mid 12000 rpm range.