The above is correct.... the KB's are about 110 grams lighter with the pins than stock, and will call for a rebalance. H116CP's are close to the KB's and piston+pin weight is very close to the stock weights: i.e., no re-balance.
Either piston will push your Static CR up into the mid to upper 9's; you can select the head gasket to tune it to the level you want/need. Speaking of which: What are you going to be doing with this engine? Street? Strip? Towing? Paperweight? LOL