I just disassembled an H code 1972 440 today, it was cast in Sept 1971. It still has the standard pistons and stock bore.
I know that since I have been running the engine in my 1971 Challenger since I rebuilt it in 1989. Back then I could not afford new pistons so I honed the block and used the old pistons and new rings. To bring up the compression I used 516 heads with bigger valves and some porting. This was before all the repo' parts came out, like aluminum heads.
Anyway the pistons have a very slight dish to them, not that it really matters as I will finally replace them.
According to the 440 Source website the latter blocks are the best blocks made, contrary to everything we used to think we knew...