Drill exhaust manifold bolt - Remove head or not?
Need to drain down the coolant for starters as the end manifold bolts go right into the water jacket.
@Oldmanmopar and his machinist/engine builder son have good luck using a welder to get them out.
One technique is to weld a washer to the broken stud first then tap tap tap then weld a 1/2" nut to the washer so you can get a wrench on it, tap tap tap then try and turn it out.
Heat from the welding helps to break it free.
Good Luck
Need to drain down the coolant for starters as the end manifold bolts go right into the water jacket.
@Oldmanmopar and his machinist/engine builder son have good luck using a welder to get them out.
One technique is to weld a washer to the broken stud first then tap tap tap then weld a 1/2" nut to the washer so you can get a wrench on it, tap tap tap then try and turn it out.
Heat from the welding helps to break it free.
Good Luck