Keith Black pistons for a 360 !!!!

Yes. but every piston manufacturer can recommend the compression of each piston. Let's simplify it here. If you took out the STOCK pistons and then put in these, What compression would you haves? Ignore valve open and close events, that is dynamic compression, not static compression.

You still would need to know your Head CC to get it accurate and there is nothing accurate about a stock head, the CC are all over the place. And to get Accurate Dynamic Compression you will need to know everything I posted accept the Valve events.................so there is no way to "Accurately" know just by going with the pistons are 10:1 or whatever.