My First Engine Build - 360 Help

I lean toward KB107's myself, I don't quite get the ring gap issue people have with them; you're checking ring gap anyways and adjusting to spec, so the top ring just has a larger spec, pay attention to the details.

If you can afford it, have the rotating assembly internally balanced, it will pay dividends down the line, dampers, flex plates, converters, flywheels become simple, just go buy what you want with out the worry of "what else do I need to make this work?"

How healthy is healthy? The Comp XE274H looks good to me.

Good luck!