Flywheel Balance?

Oldmanmopar said
That looks to be a 70 -71 130 tooth heavy rod flywheel for a 440 six pack engine .

View attachment 1716098038

View attachment 1716098039

Interesting... It's a little hard to read the scans that you posted. Is the scallop at the 6:00 position on the engine side of the flywheel in my picture indicate that it is for a exterior balance engine such as the 440 heavy rod engines were?