.0591"- .0590" (green bearing) is standard, but you also have to to calculate them as the difference between the big end of the rods and the crank pin. The crush and fit you get in the rod is important to know.
Other thing to do is if you have old bearings, measure them or look for the remnants of the color code on the edge, put them in the rod, tourqe to spec and mearsure the inside of the bearings. Difference here and crank pin will be your clearance.
Originally Posted by luvsracin87
what is the standard size of the rod bearings? i need to know so when i mike the crank ill know if i got to get bigger bearings