How Much Damage could possibly occur..............

Saw a small block chevy that had a cam snap in half. Broke about 3 cam lobes from the back. That caused the dizzy to stop turning, the cam walked out the back of the block and jammed against the flex plate. Before the engine ground to a stop one of the lifters that no longer had a cam under it fell down and hit the spinning crank and it had enough force to shoot it out the side of the block. No damage to head, crank, or rods. But a small block chevy is junk regardless of wether it has a big hole in the block.