Quote:
Originally Posted by RRR18
What heads are those? I see they are centerbolt covers but have traditional small block intake bolts. What is it about the rockers and pushrods that are wrong? I'm probably just missing something.
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They came on the late L98 Corvettes and on the ZZ3 crate engines. They have the angled spark plugs too. The problem is the rockers are too fat for the center bolt valve cover bolts and are rubbing on them sometimes because the guides are for 3/8" rods instead of the 5/16" rods in it causing the rockers to wonder back and forth on the valves. See how far off center the rocker is on the valve in this pic? No good...