[bbcmudtruck]

Internally balanced is much better than having weights slinging around on the outside of your motor! No matter the hp rating or even intended use, it's better. Now will the motor be fine externally balanced? Absolutely if done correctly! It will also save him a little bit of money, IF he already has a good balancer and flex plate. Just my opinion that if he's starting from scratch to do the little things to help the engine be more efficient and live longer as he goes. Again, just my opinion.