Lars: I haven't torn down the motor yet. I did have the chain off of it Saturday, and it has a lot of metal on the crankcase. Poulan molded lugs into the case for all the parts to bolt into(handle, etc.). Could be a pretty good project just to get all the extra metal off the case. Might be more work than it is worth. Might be a better small one to start out with. Some of the fellows in our club say that a thrust bearing has to be added, but I don't hear it mentioned in the conversion threads very much.