head

How’s it going, quick question. Trying to build a 4.0 to have as a spare for my 04 TJ. I picked up a good 115k mi. 4.0 block that was originally from a 99 XJ. I’m trying to find a head and found a 0331 “TUPY” head from a 04 TJ, would that head work? ** Side note: any guides or pointers would be...

Howdy all, I've been having some ongoing issues with my TJ. Hoping someone can lead me in the right direction with solving the problems. First I had a loud chirp/squeak coming from the engine. Discovered there was a rocker arm that was dry and rusted. Changed that pair of rocker arms and...

Hello all and thank you in advance for your advise. I would like to say that I love this forum. I come from the Honda world and it seems that all the forums there are typically very negative. It is such a relief to find an informative and positive minded community of Jeep owners as I've found on...

Hi all. I am building a new engine for my 03 Rubicon and I would like to use the Edelbrock head but it states that you need to use the older style pre-99 header/exhaust manifold. This presents an obvious problem because I have 4 O2 sensors on my 03 and dual cats. So my questions are: 1. Is...