Putting guide plates on my C9VE 429 heads.

Hi, I have what I think are unmolested (except for CJ valves and port & pocket work) 429 C9VE heads with non adjustable rocker studs. I did a search and found conflicting ideas on how much I need to cut down the pedestals to install guide plates and adjustable 7/16ths studs for my SCJ rockers. Some said the thickness of guides, others said .220".? or 3/16ths? Also, is there a part # for correct studs for this configuration? Thanks for any help!

70CobraDragpak wrote:Hi, I have what I think are unmolested (except for CJ valves and port & pocket work) 429 C9VE heads with non adjustable rocker studs. I did a search and found conflicting ideas on how much I need to cut down the pedestals to install guide plates and adjustable 7/16ths studs for my SCJ rockers. Some said the thickness of guides, others said .220".? or 3/16ths? Also, is there a part # for correct studs for this configuration? Thanks for any help!

.220" to .230" is correct but, if you cut the guide-plates in half to rotate and center the rocker arm tip over the valve tip sideways, you only need to cut the thickness of the guide-plate.

The amount machined will determine the height of the guide-plate and the final angle of the pushrod which will control the side-sweep of the rocker arm.