Originally Posted by kdemoney
My oil pressure is also dropping down next to nothing. Another reason I am considering changing the motor is for more HP. I put a 4" lift kit on with larger tires.
Gotcha. I had the same problem with my (Previous) CJ7. It was the top end. Had to replace the cam, cam bearings, rockers, pivots, lifters pushrods, ect. Yes oil pressure was low from the worn cam bearings. The bottom end was fine. Ended up with a performance cam, intake, headers ect.
The 4.2 kicked butt after that. I have a 4.0 now and I still think the semi built 4.2 would have given me a run for my money.
The symptoms I had was low oil pressure and a nasty lifter tick after the engine warmed up. It was ok when first started.