Crank and rod help please

I picked up a 85 360 tore it down and notice 6 rods had 2899496 pressed pin and 2rods cylinder 3and5 had 3418645 pressed pins also is this right or have someone been in this block ? Crank number 20277169 , block number 4179930-360-2 , could some one help me , the 6 rods showing they are 340 rods I'm lost , would it hurt any thing with mixed match rods numbers ?