[rotorwrench]

The 48 or 91A types use the small con rods too. The 99, 29, & 59A types will use the larger con rods but 8BA stuff can also be used if whittled down a bit. It might be easier to find the right crank. If it's a short snout then look for that. Same thing it its the long snout type. There are still good pre-war 221 cranks out there.