Head will not stop leaking water. Pulled head. Fou
If the studs are not coming off straight, my guess is that someone has either bent the old studs or heli-coil thread inserts or something similar have been incorrectly installed. Check your block and see what the case is. We have heli-coil thread repair kits available or repair studs that are 1/2" threads on the end that threads into the block instead of 7/16". Drilling of new threads for heli-coils or something similar should be done in a drill press or with a magnetic drill so they are straight.