As said above the rcg 50 that hobbyking sells is actually a 55cc. Hobbyking sometimes does not even know what they are selling lol.
The picture of the rcg 50 on the hobbyking website is not correct as well, only minor differences but it looks far more like a dle 55 or dm 55 in the flesh. I believe most parts between these engines would be interchangable becauseI have read a dle 55 head and piston fits a rcg 50 (actually a 55) for example. I also read somewhere that the rcgf 30 and rcgf 32 share the same crank as the dle 30.

I would love to know just what is interchangable on these engines from those who actually work on them on a daily basis. It seems to be a bit of a secret.<br type="_moz" />