Dynoflo has a point in the timeline of this block. its hard to track where the blocks been for over a year.
But if proven never run untill the time posted then yes He is liable for damage, as long as no one has touched the rod torque.
Rod torque is ultra critical, most if not all engine builders Strech them to length, this process takes a bit of time and I could not think of anyone leaving them hand tight. But stranger things have happened.
Not taking sides
just my 2C