Help, I have a 71 C10 with rebuilt 350, it has 184 heads, z28 springs, rocker rollers, and a small RV cam. I have broken 3 rocker studs, each on a different cylinder. I'm stumped, I don't have any idea what wrong. Any help would be greatly appreciated. Thanks
First of all you need to know the spring pressure. if it exceeds stock by much you need to change to screw in studs. If that doesn't cure the problem you probably have the incorrect rocker geometry. need to check the travel at the top of valve stems with marker and see where the distance across it is.