ajstarr2288
NAXJA Forum User
- Location
- Vermont
so, i took my head off and found a crack in it. can you fix a crack? if not wheres a good, cheap site to buy a new one?
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cylinder head
- Thread starter ajstarr2288
- Start date
winterbeater
NAXJA Forum User
- Location
- Royal Oak, Michigan
Is your's a 2000/2001? You have the infamous 0331 casting? Search and you'll find many threads on it. Find a 0760 head from a '99 or earlier on craigslist. I got one for $50. Not worth trying to fix what you have. http://www.naxja.org/forum/showthread.php?t=935856&highlight=0331
Last edited:
5-90
NAXJA Forum User
- Location
- Hammerspace
It is important that we know the year.
If you have a 2000-2001, you have the #0331 head - and you just had your "#0331 Club Card" validated. Here are your options:
Get a cylinder head from a 2002-up TJ or WJ/WK - direct swap. The casting was revised ca. 2002, and you'll be fine with this option.
Get an earlier cylinder head - an #0630 from 1996-1999, for instance, but you'll have to use an adapter plate to close off the exhaust ports into the manifold, and you'll have to fabricate brackets for supporting the coil rail. Both have been covered here - if you don't find them by looking and ask nicely, I may have the links somewhere.
For the rest, you can use the following sets of years for a direct swap:
#2686 - 1987-1990
#7120 - 1991-1995
#0630 - 1996-2000
#0331 - 1999-2007
(The reason for the overlap at #0630/#0331 is because the XJ got the #0331 head a year later than the TJ or WJ.)
The cylinder head number I'm referring to can be found on the top side of the head, driver's side, midway back (roughly between the #3 and #4 exhaust ports.) It can be found outside of the valve cover - you may need to clean a bit to see it, but it's there. It's a four-digit raised number cast into the head.
On questions like this, it is terribly important that you tell us what you're dealing with - and not rely upon your profile (which may be incorrect, or you may have several rigs you're working on, or you're working on a buddy's rig, or...)
A competent machine shop can repair a cracked iron casting - they stop-drill the crack, install pins, and grind/weld/grind the crack shut.
If you have a 2000-2001, you have the #0331 head - and you just had your "#0331 Club Card" validated. Here are your options:
Get a cylinder head from a 2002-up TJ or WJ/WK - direct swap. The casting was revised ca. 2002, and you'll be fine with this option.
Get an earlier cylinder head - an #0630 from 1996-1999, for instance, but you'll have to use an adapter plate to close off the exhaust ports into the manifold, and you'll have to fabricate brackets for supporting the coil rail. Both have been covered here - if you don't find them by looking and ask nicely, I may have the links somewhere.
For the rest, you can use the following sets of years for a direct swap:
#2686 - 1987-1990
#7120 - 1991-1995
#0630 - 1996-2000
#0331 - 1999-2007
(The reason for the overlap at #0630/#0331 is because the XJ got the #0331 head a year later than the TJ or WJ.)
The cylinder head number I'm referring to can be found on the top side of the head, driver's side, midway back (roughly between the #3 and #4 exhaust ports.) It can be found outside of the valve cover - you may need to clean a bit to see it, but it's there. It's a four-digit raised number cast into the head.
On questions like this, it is terribly important that you tell us what you're dealing with - and not rely upon your profile (which may be incorrect, or you may have several rigs you're working on, or you're working on a buddy's rig, or...)
A competent machine shop can repair a cracked iron casting - they stop-drill the crack, install pins, and grind/weld/grind the crack shut.
