IMO from what i've read, heard and seen, King bearings, ACL or Global bearings are best?........Maybe Figgie or IJ would chime in...I'm running 10 under ACL's in my bottom end with a clean shaven crank, balanced and my engine builder has used the same ACL brand in 4 different 7m's here in town and I have yet to see any major problems out of them. They are all putting down 400RWHP+