I am using about to put my headers back on the heads(which are aluminum) and was wondering if anyone has had any issues with getting the nut on? It was tight with the original 7/16 bolt head and looks like the nut that goes on the stud is even bigger. The studs in question are ARP 12-point or the Mr Gasket 6-point. My headers are Hedman shorties. The Mr. Gasket's use a 9/16 nut, which I know would be impossible to get past the header tubes and am not sure about the 12-point nut size. The 12-pt fit, but was impossible to get a wrench or socket around #5 and #7. I am just trying to stop any chances of f'ing up the threads in the aluminum. The intake will probably never(fingers crossed) need to come off again, but the headers might have more of need to come off and I heard studs help in this issue. Any suggestions?