I bought this b20 block back in 2008 from jg enginedynamics. The sleeves look stock and was suppose to be jge ductile iron sleeves. Anybody know anything about jge sleeves? Cant contact jge for they have been long gone.

 

sorry for bringing back from the dead, but I have these sleeves also in my f20c. no problems. you are right about them being long gone lol