rocker studs backing out
 

bbc 565 afr 345 heads , howards solid roller 685 lift ,howards 1.8 roller rockers ,10.0 to 1

the problem is ran motor twenty minutes ,,rockers started getting loud ,shut it off found number 8 exhaust rocker stud almost backed all the way out , re torqued all studs ,ran twenty more mins started happening again , my question is has anybody ever ran into this and can i just loctite them in and torque them ?

thanks in advance for help

We normally use red loctite on them and torque to 65 lbs.Bill