H/C swap now slight ticking
#3
ticking from the lifters is not normal. valvetrain noise is pretty normal. what is your oil pressure? i had a lifter that was bleeding out when oil gets hot. changed to thicker oil and seems to have solved problem.
#4
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Longer 7.35 pushrods? stock is 7.4 so i dont know where your coming up with longer. You have your heads milled... Did you measure for correct pushrod length? I do believe the ls7 lifter needs a slightly shorter then 7.4 pushrod but where you have your heads milled i would just measure it.