Converter stuck in cranksaft!

If the converter goes in but it's snug then I don't think it's a mismatched application. Keep in mind that the converter spins with the crank so it has to be quite a close tolerance to avoid any imbalance but these are both aftermarket parts and even with CNC machines, someones got to keep an eye on tolerances and tool bits and with any production manufacturing there are some boo boos that slip through the cracks. I dont know if it's the crank or the converter but you probably only need a couple of thou(.002). I wouldn't use the dremel if I was doing it because it's too easy to put flats on it and be out of round. Just keep going with the sand paper with your hand all the way around the stub of the converter untill it slides easily all the way into the crank. Short of that you would have to wait for Monday and need some measuring tools to see which one is wrong. JMHO. Kev