Rocker arms question


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By YBLOCKEREDH - 9 Years Ago

Hello , I have an issue and looking for a solution. Installing my rockers on a fresh rebuild with multiple doner reconditioned high lift A & B rockers to make a matching set.( Not sure it matters but ran the B's on one bank and a mixture of A's& B's on the other)... Upon installation I am noticing the rocker's on some valve stems do not center on the rocker foot. Is this normal? If not can I shim the shaft to move the rocker sideways to center the contact point? If I can do this where can I find the shims for this? I have googled this subject with no success..Thanks.
Gary
By charliemccraney - 9 Years Ago
That is normal for factory rocker arms.
By YBLOCKEREDH - 9 Years Ago
Thanks Charlie,
With all the eye to detail surprised that's normal. They do look plenty stout though so will proceed thanks again.

Gary
By Ted - 9 Years Ago
By design, the valve stem tip end of the oem iron rockers is wide.  If the engineers had tried to center the rocker tip on the valve stem, there would have been three different rockers.  The easiest fix during the original planning stage was to simply have a rocker with a wider tip to compensate for the valve stem location versus the pushrod location.  As a result, there is some noticeable rocker offset at the valve stem but that’s so that the pushrods can be appropriately be centered in the pushrod holes within the heads.  If trying to center the rocker on the valve stem, then there will be some interference issues with the pushrods within their respective holes.