heli coil help

remove the bolt carefully and thread in a stud with locktite on it. Never unscrew it again.....The STI taps (helicoil type) are larger than standard taps of the same size. They also sell studs that have 2 sizes of ends, ie 3/8-5/16. Ive use a few 8X1.25 metrics in stripped carb intakes before.