You guys also got to remember the first fire up of a new motor generates a lot of heat as all the parts "get introduced" to one another, even when everything is precisely machined and fitted. Those tighter .002" Main clearances (as Monte correctly points out) means that you have much less margin of error on any high .0001 or tight spots. Also the 360 has a bigger main diameter than even a 440 so bearing speed and heat is higher, so combining that with a tight clearance is something to watch carefully....even under normal non stroker loads. Also....I don't think most people realize how much things move around inside a cast iron block, and how much side loading comes into play when you load a motor up. I'm assuming a motor like that was line honed? I have to suspect somewhere the (too tight on too tight) 'tolerance stack' might have bit you. More oil clearance (say .003 vs .002 )also means more (50%) hydraulic cushion around the crank as well as more volume passing through with less restriction, it also allows the oil to wick away more heat. The other key component to oil (other than friction reduction) is also it's surfactant (surface cooling) qualities.

Again, I'm so sorry to hear about this.