I have access to a 350 with 2 bolt mains for $100. The engine is partially disassembled, but has all the parts to assemble a long block. The crank is bad, but that doesn't matter...I want to stroke it anyways.

My question is this: Is a 2 bolt main block good for stroking to 383? Will I need the added strength of 4 bolt mains or not? Thanks.