OK,. your balancer is Nov of 1972.
Heads are 1970, July 11,and 1971 May 27. These are probably closed chamber heads. (You can check these by "feeling" in the combustion chamber with a bent up coat hanger....to see if you have the "ledge" that then falls off....)
If the DA11 is your casting date, I would guess that what you have is 0A11, or Jan 11, 1970.
Double check the casting date....as a D2AE-CA block should never have been cast in early 1970......
Steve
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