The old Ford straight trucks with the 460 in them....the studs would snap at the head from rot and heat. We use to take a regular 3/8 nut and weld the nut to the stud in the center of the nut hole and wrench them out. Glad they stopped making them.
Originally Posted by Toms Blue Ram 1500
Could be done . The aluminum heads scare everyone . If you have to drill the bolt , just make sure you the down the center of the bolt . Ideally if you could use left handed drill bits would be great . As you're drilling it's biting in an trying to spin out the broken bolt .