I called a shop this morning that only grinds cranks. Cost would be $700. Guess I will be buying some new rods and leave the crank as is. I will save the 2.2 rods for the 400 stroker I build later on. What would you guys say is the hp and rpm limit on a cast crank, with light weight pistons and a typical h beam with 6.76 journals. RPM would be 5500-5800, 6000 max. I've looked at some 440 flat tops from diamond, mahle, icon, ross. They all seem to be between 608g and 660g plus pin. How would this affect the balance. Would it be possible to balance internally.