The ring is NO big deal at all. I have even made one myself on a 340 crank. It had all that stuff cut off it for some crazy circle track idea that didnt work, I made one for the kid when I was in college, and made it about a .002 press fit, and then we tig welded it in. As far as I know its still in the, more than likely blown up, but still in the crank. Dirby car....