Hydraulicing due to oil on bolts ....but if threaded dow by hand not likely.
More likely damage from before you some how.
Be intersting find out more..
More likely damage from before you some how.
Be intersting find out more..
Wow! Here in the Great White North, blocks crack because of water freezing in them. Does it even freeze where you are?
I doubt it is the stud girdle. If it was, I would think Justin at R&D would have heard about it sooner. If you put the stud girdle on another 7.3 and it does the same thing then that would be pretty damning.
My guess would be that it was a weak casting, or it was damaged before you got it.