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0331 Heads?

Posted: Wed Oct 18, 2017 6:11 pm
by CV10077
Is the 0331 head issue as big of a deal as some people make it seem on the other main Jeep forums?

Considering a 2001 XJ and was wondering if I should go for it as it is very reasonably priced but don't want to get into something that's going to be a ticking time bomb.

Anyone here have input?

Re: 0331 Heads?

Posted: Wed Oct 18, 2017 7:18 pm
by Kurt
Just check the head casting to see if it's a 0331. If so be warned..

Re: 0331 Heads?

Posted: Thu Oct 19, 2017 5:38 am
by Frank
I believe all the 4.0 heads are the same bolt pattern . If you like the XJ , get it and pick up a different head for cheap and be done with it. FjR68

Re: 0331 Heads?

Posted: Thu Oct 19, 2017 7:20 am
by MDSRACING398
I have 2 #7120 heads if you go this route and are worried.