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DattMtn

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  1. Posted Friday at 10:33 AM I have recently gotten my engine back together with a new cam (Comp Cams kit: K68-201-4), with new intake and exhaust valves that I have lapped into place. No milling no decking was done. There were issues with the lifters that I received, a full tenth under on the diameter. I figured the lifters shouldn't be sloppy in their bores! Finally got the correct diameter lifters 0.904" (Sealed Power: HT-2011) in it and put the rest of the motor back together. After doing the break in run of 30min at 2K rippums with high zinc purple break in oil, I have noticed that there is a lot of clatter in the top end and upon further inspection there is slop in some of the rocker arms. Is there a way that I would be able to test these new lifters without pulling the head again? What would be the cause of roughly 4 rockers to have slop? If I wiped the cam that would typically be on the nose of the cam not on the heel where I am seeing the closed valve rocker slop. It's interesting that the if it's the pushrod length, while it is okay on some of the cylinders. I am fairly certain I am making good oil pressure as I ran it with the valve cover off for a second and it sprayed oil hard all over the engine bay (factory oil gauge shows pressure). I would very much appreciate any input you have and set me on the right path.
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