Figuring out how much heads have been cut?

I'm NOT familiar much with what is available in cast pistons. But in my old trw catalog there were at least four different forged pistons for a 440.
There were the Sixpack replacements that were somewhere around .020 down. There was the domed 2295 (11.5 to one,Hah!) that were about .050 down, another flattop that was about .080 down, and one that was more than an 1/8. (wanna say, .150 or so)
If you have a stock replacement, for a LATER 440, c.r. could be anything from 7.4 up, with 906s,346s, or 452s. I still think somebody tried to crutch a bad piston choice with a heavily milled closed chamber head.