Mine runs the 1/2 groove Clevites with no issue. If the crank measures standard, there should be no way a performance bearing mesures that tight. I can't say for Kings, but Clevites will usually give about .0027-.0030 depending on line bore dimension. The line bore of your block may be to tight. There are no .002" bearings available that I know of. I would not run under .0027 on the mains.
Doug