FYI helicoil usage

While torquing down my heads on the final step, 80 ft/lbs, I stripped a stud. Only thing I can figure is the treads were weak from a previous incident, but I can't be certain since I acquired the broke down D2 from someone else. Only options were helicoil or t-sert. Acquired a 2d 7/16-14 helicoil from the local fastenal and installed. Got the new head gasket from lucky8 today and torqued her down. 80 ft/ lbs was no problem! Praise Jesus! Anyone who might run into this problem using studs, rest assure, the helicoil will hold.

For all you who might care, I meticulously followed the installation instructions for the studs, just had some bad threads....it happens. Called the machine shop and they even remembered chasing the threads and didn't find anything unusual.

Thought I might share this info with u guys. The 2d helicoil is not the standard size sold at most auto part stores. It is longer to accommodate the threads on the stud. Wouldn't use anything shorter than 2d.:buttrock: