i've beat plenty of b16's with mine and it's a dc (d16a1) , and a zc makes a lil more power than a dc. both b16's and zc's can be built to run very good, but i like the zc or dc cause it handles very high rpm's alot better than b16's and can easily be made to beat up on anything out there! i've seen sooo many b series that have bottom end problems shortly after they're used a lil bit! just ask jamie , dusty , jake, jason, mike s., shawn, actually just about anyone who's ran em!