A different Q on 340 Vs 416

already have the fresh bored and decked 340 block,heads,cam,lifters,headers,intake,carbs,and pretty much everything needed for this except a complete rotating assembly(unless stock stroke then i just need pistons and a bunch of machinework+),oilpan and a bunch of bolts.Unless someone shows up and throws alot of money at me for that block.
318, 340 and 360 are all same block