I´m now rebuilding my 68 350 and have bought most of the stuff from Mondello. When I now had my heads at the machine shop they reacted on the 5/16" thread for the rockers since Chevy 350s has a bigger thread. I use Mondello´s SK240-s which has a pretty high spring pressure.

So my question is, will the rocker kit I bought from mondello with the 5/16"/3/8" rocker studs work with these springs or is a 5/16" stud too small for high spring pressures? I´ve tried to e-mail Mondello but they do not respond.

Very thankful for all help I can get!

/Jon