Yeah, that's what I really want to do but I am not sure I can get it square in the crank and I am running out of time to get this engine back together and I don't want to create a new problem.
Create a new problem?
Like a bent crankshaft, damaged balancer or wiped thrust bearing?
Make a jig. Use a socket that fits tight to crank snout with a 3/8 shaft size. The crank is already centered for the bit. Allign and drill with correct bit for 7/16 fine thread.