340 crank in 318?

Hi,

I have a 95 dakota I'm planning on making a street rod out of. I need a cast crank, and was wondering if I would be able to put a 340 crank inside of a 318 block. Is this possible?


Thanks.

(I know I will need a cast crank because the truck will be putting out over 800hp)

EDIT: I meant forged