RE: Savage half tank EXTREME lean problem.
The temperature itself is NOT what damages an engine. It's all steel, brass, chrome, and aluminum. There's nothing in there that would simply be damaged by temperature. The only reason your engine will be damaged is if the head button or the piston are pitted from detonation. If it was detonating, then fear engine damage. If it wasn't detonating, then don't sweat it.