[Power Surge]

Well this discussion brings up an interesting point.... If the caps were installed at AC, but then also were removed in the US when the cars were painted, then what's really "correct"? If Shelby took the hex bolts out and replaced them with something else, then really EITHER fastener would be correct, be it from AC or SAI.

Personally, I don't think phillips is correct either way. My car has phillips on it right now from when it was originally built, but I plan to change that to hex head with thin washers underneath (also something I noticed on some originals).