I'm running a solid roller with standard SBC non-self-aligning rockers. The problem is, once I lash the valves, some of the rockers are contacting the center row of head studs. The head studs are touching the rockers right below the fulcrum area.

At first I thought the rockers were too wide, but I've never heard of a certain rocker being too wide for head studs. Now I'm thinking maybe the rockers are just sitting too low? I forget what pushrod length I'm running off the top of my head, but maybe they're too short?

The strange thing is, rocker arm tip to valvestem contact seems fine, and the motor will fire up just fine.

 

What kind of rockers are they?, also haev your heads been milled at all?.

 

They're Summit brand rockers, which are the same as Crane Gold widebody rockers. The heads have been milled, but wouldn't that make the rocker sit higher?

 

Just an issue with your combination, not the rockers. Some people have head stud clearance problems with that type of (aluminum wide) rocker, and you can either take material off the rocker or stud to create the clearance you need, or switch to bolts which will offer better clearance. Personally I wouldnt touch the stud, and since you already have them in, wouldnt replace them with bolts. Just machine the rocker down as little as possible so you have clearance. I dont have that problem with my CC pro-mags, but it isnt the first time it's come up.