Ad me to the list of guys with a broken Mega Block..Bought a car and it was in the car when purchased. Well it windowed itself a few passes later..Pre World block with lifter bushings.
This is the good side the other side is missing about 11" of skirt
These are both worse than that side of your block. About the same size hole in both of these but it goes all the way down & took out the pan rails. One is on the driver side & the other block is the passenger side.
