Broken bendix bolt

[divcoone]

Knew this might be a challenge. Went fishing for the head with a flexible magnet wit no success. Was going to stick a magnet on the flywheel but discovered the flywheel locks up immediately. I can turn the flywheel backwards with no problem. As soon as I crank it normally, it locks up.
If I drop the radius ball, will it give me access to the bottom?
Thanks, Bob Giles