balance ?

You cut through the hardness of the crank good luck keeping bearings in it. They will stick fast like an Alabama tick when they get heat in them. Buy a crank or pay to get it cut then rehardened and balanced for more than the cost of a new stroker kit.

Price the work out that you'll need to do using that out of balance 360 cast crank. Just like rods it is cheaper to buy new then resize your old rods. I would get a Scat forged rotating assembly. No guess work.