Hey guys,

So I have finished measuring up the pushrods on my 360 build. Using a set of RHS Indy X heads ported by Brian at IMM with Hughes 1.6 ratio rockers (Shaft mount) and a custom juice roller ground by Brian as well. Just finished checking for length with an adjustable pushrod tool that I made and am slightly concerned. I have no idea what size my current tool is, but I measured about .026-.030" of clearance from the outside of the pushrod cup to the rocker body. I ran 5/16" pushrods before with no issues, but im worried that with the 3/8" ones im stepping up to I may have issues.

What is the acceptable clearance in this area? Also, if I do encounter rubbing, do I have to go and grind these pretty rocker arms down so everything fits? I am going to get the pushrods custom made, so im wondering if there is a way I could order a reduced cup thickness to avoid this?

Just looking for some suggestions and opinions on this!

Thanks!