Thanks for the advice, I'll check around locally. Do you know of a good online source for them? I have a digital caliper that I used to measure the bearings and the case. The larger crankshaft bearing did fit in the new crank case. However, it was a very tight fit (it aint coming out). I had to heat the case with a butane torch and press the bearing in with a large dowel.

I'll probably end up chucking this motor. It's a shame. I was dissapointed when the parts arrived and the pieces from the old engine didn't fit. I should have just replaced the piston / sleeve and left it at that. Oh well, not nearly as costly as some of my other RC lessons.