Bang for the buck.

I'm just curious what's been done and what is worth considering, inspired again mostly by this stock bore stock crank 5.9L. I'm not going to build something I already have just to see again. The engine I did for me, it was WAYYY more expensive but, that's what i felt I should do to build more power.
Little confused. Didn't read anything about a stock bore stock crank 5.9. So you want reliable, service life out of a 650 hp 5.9, is this a street engine ?? I suggest forged pistons and crank set up for boost and half fill the block. Top it off with the right heads and cam. Turbos work wonders.