Who is telling you to use a V8 flywheel on a 235?
12 volt 11" flywheel is casting #3705410 and has the bolt holes very close to the edge. 1955-62
6 volt 11" flywheel is casting #3704832 and holes near edge. 1954-55
6 volt 10 3/4" flywheel is casting 839754, uses a 9 bolt pressure plate. 1942-53
Make sure the starter is correct for the flywheel as 6 and 12 volt starters used different sized gears on them because of the difference in flywheel tooth counts.
You can run a 6 volt starter on 12 volts, but not the other way around.
talk to your machine shop, they should be able to weld up the holes and resurface it, then drill the right ones. Make sure the pressure plate will fit it first, though.
As for the V8 stuff, its the SMALL block 400 and the big block 454 that use a different flywheel and damper because they are externally balanced. The others were internally balanced. This applies to 1985 and older engines with the two piece rear main seal.
