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Correct Socket Size for '71 383 road runner Harmonic Balancer "Goldilocks" Bolt?!?

DeltaV said:
Provenance? I bought it from owner #2 after the timing chain jumped. He owned the car a very short time; and already owned a '70 Charger R/T. I disassembled the original, numbers matching engine myself. Bagged and tagged the parts of course.

I had a nice and informative telephone call with owner #1 after purchasing the car from owner #2. Also, immediately after purchasing the car, I submitted a request (and money) to the Texas DMV for a copy of everything they had for the car. They replied back with a large, thick envelope of paperwork. This was back when they weren't afraid to provide personal information like names and addresses.

My project is to reassemble something that I personally disassembled. No mysteries or ghost stories here.

BTW, all numbers matching in every respect. Nine ways to Sunday.
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All of which is solid enough information that it only keeps the same question in place. Why are they supposed to have a smaller bolt yet it seems virtually none of them do?
 
"What have we learned here?"

That Chrysler crank bolts still, and have always been, 1- 1/4 " head.
 
long lost research from last night which I am now sour about. You would think these sources would be uniform on data from 50 years ago.
 
In doing research you always have to consider the source.
 
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