snacks-
You can get the correct flywheel bolts from Vintage Power Wagons. These bolts have a round head with a flat shoulder that fits against the recess in the flywheel. The nuts for the 230 go on the engine side, you can't get the bolts in or out of the crank without having the rear main bearing cap off (don't ask how I know...). Here's a pic of the 218 crank that came out of my engine, with the same type bolts still in the holes. On the 218, the bolts go in from the engine side, NOT SO on the 230! the bolts have a non threaded shank that fits the holes.
Pete
