Engine Block Casting #s

[CHRIS75]

yeah the block came out of a truck but there is no number above the starter it looks like the numbers where taken off the block with a grinder or something i dont have the heads, oh well guess ill trash it, ill start all over again, so what year block would you guy recommend for my use, i was thinking something with roller valve train capable if possible, and strong? one more question for the 393 stroker you use a 3.85 crank and stock 315w rods and 302 pistons why not 351 pistons?, i phoned an engine builder to ask him and he couldn't give me an answer, guess i take my business somewhere else, so if you bore it out 0.30 over wouldn't it make a 396?