Originally Posted by gtx6970
We had a guy who was REALLY good with a mig welder. he would lay a nut over top of what ever was left of the stud . and 90% of them time he had them out in a few minutes


Better yet start with a flat washer. Being thinner it is easier to get penetration to the broken stud. Then weld a nut with a larger hole to the washer. The heat will transfer and help loosen the stud. Aluminum heads usually will allow easier sud removal. We always removed the inner fenders for access.