My mustang has had the smog pump removed and the jacka@@ cut the crossover tube and pinched it off. I have read that a 5/8-11 bolt will screw into the back of the head when the blocks are removed. I need to know the details from anyone who has actually done this. Will the bolts work? How in the heck do I get the blocks off (the bolts wont budge and I cant get a torch in there.) Let me know whats up.