I know that it will sound like a cop out but the only way to know is to check for yourself.
I have been told for years that the 906-346-452 open chamber heads are all in the 84-88 cc range. I checked several about 2 months ago and found that 4 of them were right at 90 ccs. One of the 452s came in at 88 ccs.
I'm building a 383 for a '70 Charger. The 383 can be hard to build compression due to the shorter stroke so with those engines, small details are quite important.
YouTube has a lot of helpful videos on how to CC a chamber.