8 3/4 SBP Wheel Studs

I picked up a set of SBP rims for my fast back, 15x8 with a 4.625 back spacing. I have about 1.5" between the spring and rim. Im trying to stuff the biggest set of mickeys i can under there 275/50r15. I may have to add a spacer. Has anyone changed out the studs to longer ones...which ones did you use? Part number? I measured the diameter of the old 7/16 studs, .466. Thread length is just over 3/4"

Thanks!
I just installed Moroso 3" studs in mine. P/N 46150. Axels out, bearings left on. Drilled holes larger in drill press for a .010 ish press fit. Pressed in. Using the Moroso deep lugs also.