Originally Posted by Cannonlbz
Hey, I'm replacing the head gasket in my 2001 Jeep Cherokee that I just bought with 89000 miles. Depending on the condition of the head, I was wondering if any one knew if any companies sell performance heads for the Jeep 4.0L. Tried searching and nothing.
The head itself fails way more often than the head gasket on the 00-01. How was this diagnosed?
The factory 0331 head has a known casting defect between cylinders 3-4. You do NOT
want to put that head back on your engine!
Clearwater Cylinder Head has a good redesigned replacement head if you want to go with stock.
Also know that if your issue is the head and it wasn't caught soon enough, you will most likely have significant bearing wear throughout the engine.
Educate yourself about the 0331 head. Lots of information online about it. Here is one good link. Good luck and keep us updated!