Was not thinking off just throwing in a forged crankshaft. I have done a little research and I know that everything needs to be balanced. I have also read that there may need to be some modification to the block to fit the forged crankshaft in it. I am only wanting to do this conversion because the specs on my engine build are 540 horse. Not sure that the cast crank will hold up to that I see many different thoughts on that idea.