A different Q on 340 Vs 416

If I were you I would think hard of using a 360 motor, stroke it and add goodies, it would save you a bunch of cash.

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.