Balancing wouldn't hurt but it is not necessary. I'd replace the rod bolts with ARP bolts and have the big end resized. Make sure you use the correct bearing size too.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.