The SF liner is From a Ringed Version and it also fits the crank case that must be why it is thicker, and is a "long stroke" engine
So if any one has a Dead 61V it would be possible to use a OS 61 FSR ABC Sleeve and Piston to put it back in to service.
Would it be Possible then to use a piston and sleeve plus ring and head from a 61 FSR of SF Ring engine ?
Has any one tried a Current OS 61 FX piston and sleeve in a FSR , SF or V / VF ?
My other Crazy Idea is to buy a
http://www3.towerhobbies.com/cgi-bin...?&I=LXCG79&P=7
And Make up a Current 61V using a 61FX for parts, This would be a expensive excersise but intresting.
Johnkpap