1971 340 Build - Choosing piston rings dilemma

I've got to ask a dumb question about the pistons? Will the KB107's that are designed to work with the 3.58 stroke of the 360 motor not come way too far out of the hole using the 340 crank, which as 3.31 stroke? I know this has nothing to do with the rings that the OP is asking about, and maybe I missed something. Just worried about the OP getting an unwelcome surprise after assembly! :eek: