I took my engine apart and on the block side of crank bearing 1 it looks like the previous person that got into my block knocked the corner out behind the bearing. Also I noticed two other weird areas 1- two holes coming out of the cast wall of the oil pump channel 2- a chunk missing on the back of the bearing where the oil pump drives.
I was going to machine this block anyway after a overheat but now im a bit disturbed. Is this salvageable?