Remanufactured 360 with spun bearing.

How long was it run w a spun rod bearing? I have a 360 that spun a rod bearing and was only run for 5 min but the crank and 2 rods are spent. I also have a 340 that was over revved and spun # 5 rod bearing. Was shut rite off and was able to clean the crank up @ .010 mains .020 rods and replaced # 5 and 6 connecting rods. They were pounding so hard w the spun bearing that the caps had to be pried off.