Smitty78

So I have recently been swapping engines into blown up Camaro ss's have put an l92 in to replace an l99 in a automatic, and done two gen 4 6.0s all three have lifter noise and for the life of me I can't figure it out. Tried some tunes with my HP tuners device and no help at all. Only one of these engines have I changed the cam and lifters in the others have been direct swaps other than accessories and oil pans. But all three have the same lifter noises anyone know what's happening? I have changed the o ring on all three pickup tubes and changed one of the oil pumps????

LS1Formulation

iTrader: (13)

I would hook up a mechanical oil pressure gauge and verify you have good pressure. Making sure the engines are healthy is the first step.