When you order, ask them what the journals will be size wise, to the ten thousandths. To get to .003 rod clearance I had to find a rather expensive + size bearing. If you have a shop do your assembly, get their input on the final journal sizes. Mine were on the small side, which caused the problem. Also ask about knife edging the counter weights. It is worth the hp to do it. Crower turns the counter weights on a lathe to balance the crank, rather than drill holes. I like that. Mine was made out of 304M steel, some pretty tuff stuff.