small block rocker shaft studs

You can get a stud and machined hold down kit from hughes performance
for your small block or big block. I just got both and have installed my small block set. You should know that you may have clearance problems depending on your rocker and retainer sizes. I had to install the studs after placing my
shafts and rockers on the head, then install the nuts. You may also have to machine some of the holddowns to align your particular rockers. I had to with my W2's. The results will be worth it, as they should really help in securing you shafts and keep you from stripping the threads on your heads