Fox makes a couple of bushing engines, a .40 and .45, the .46 through .74 are all ball bearinged. The .46 is the only ABC engine they make now although they may have a a few .74 ABC sleeves left. They ran out of .60 ABC sleeves a few years ago except for some .60 ABC sleeves wtih pipe timing. I keep hoping they will stroke the .74 into a 1.00, it would easily match up to others 1.25s and 1.50s.