When does the motor need to be sent out to get it rebalanced and or be checked for clearances?

My friend spun a rod bearing.. he got the crank re surfaced so they needed to use alittle bigger bearings.. Hes also in the process of installing ARP bolts (the ones that bolt right up), cam, pushrods, retainers, springs. So the whole motor is completly apart.

Would you guys recommend sending the motor to get rebalanced or should everything be good enough to bolt right up?

 

I would have it reballanced, if it were mine.

 

If it was an all-out race engine, I would agree w/ conan, but really not necessary with street engine, balance will be fine with u/size bearings