recently purchased a stud kit from lucky8 and all was well and dandy until somehow one of the nuts got lodged on the stud and caused me to strip the threads out of the block. Doing a helicoil and replacing the stud/nut but am having difficulty finding the the exact size/model of stud for the replacment. i know the bottom threads are a 7/16th-14 (unless i'm wrong?) but i dont know the length. Its the top center stud, so one of the 6 longer ones that you get with the kit. Couldnt find it on ARP's site and sent an email, as well as an email to lucky8 but if i dont have any luck getting it through them finding the right size...

 

basically i'm hoping someone here knows the correct size/part number to purchase an individual stud and nut, as i really dont want to buy a whole new kit