I have an elderly friend who raced a Max Wedge car in the 70's, and he collected a lot of MW specific parts when he ran across them. He asked me to sell the stuff for him, and I ran across one piece I'm a bit confused about. He has a crankshaft with a casting number of 2206158, with an 8-bolt flywheel flange. None of the info I've been able to find says that casting had an 8 bolt flange. Any idea as to what it may have been in originally would be appreciated.