I recently put this engine together and have a lot of noise which seems to be coming from both heads.(passenger side louder), I have checked for spring height, and preload. I'm not sure what else to check for. my spring heights are not perfect and the preloads are all a bit different but I dont have any slop left in the valve train as far as I can see. Oil presure starts out at 75 and slowly settles around 35. I installed a Lunati cam and lifter kit, comp springs, and had the heads redone.



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