Jamie with the rod out in one pic it looks like rotational heat at the pin and another pic, just impact heat from hammering things about.

With full floating wrist pins I cant see how any rotational heat could be possible.

Someone else stated a cracked cylinder and then a hydrolock, if there is no readable rotational heat transmitted into the top part of the rod, then , thats probably what happend.

From the new pics I cant tell, it looks like heat in one and not the other. You being there will be the best judge. No doubt at the rods main journal everythings fine.

That is a very unhappy mess.