nhra_crazy

iTrader: (86)

I am working on a 94 firehawk with 66k on it. It has a mild head and cam package on it. The problem is I am getting a tapping noise out around the drivers side rear of the valve cover almost sounds like a lifter so I threw a new set of lifters in it. Its still there. rockers, pushrods looked fine. Its more when its warmed up and I can make it do it constantly at 2000rpm's. Its not a bearing cause its higher up on the motor not a low noise. Any suggestions would be a great help!!

c5formula

iTrader: (55)

i have this same problem with mine after the heads and cam package i put on my 97 lt1. some told me it was the aftermarket rr's. but i dont know how they could make a noise like that.

koolaid_kid

iTrader: (21)

How did you check the pushrods? The best way is to roll them on a flat surface, preferably a sheet of glass. A visual inspection may not pick up a slight bend.

nhra_crazy

iTrader: (86)

I will check the pushrods.. anyone else ideas?