we have sold built motor components to several dealerships and smaller shops that have built and blown motors, here is a pic from one rod bearing that ruined a motor that we recently flew down to tune. (after they rebuilt it a second time)
proper bearing clearance is crucial on this motor, more so then many other motors that people can build with plastiguage and some how get away with them living. I wouldn't even think about plastigauging this motor for anything other than OEM power. If you do not have the proper measuring tools to build motors, I would not attempt to build this motor.