1967 BH Slant6 w/ rebuilt 904 and Gear Vendor OD

50-under on the crank... Don't often hear of a crank going more than 30-under
Yeah. I don't know where you would find bearings for it. I have an assortment of slant six bearings. .001, .002, .010, .012, .020, .030, .040, have never seen .050 but that doesn't mean they are not available on special order.