FlameRedTJ
NAXJA Forum User
- Location
- Lawrenceville, GA
Sorry for the non search but its kind of a quick deal and just wanted to get a few opinions.
02 WJ 4.0 good base?
- Thread starter FlameRedTJ
- Start date
beraad44
NAXJA Forum User
- Location
- Bell Buckle, TN
are you wanting to build up a WJ or are you putting a WJ 4.0 in a XJ
FlameRedTJ
NAXJA Forum User
- Location
- Lawrenceville, GA
Well actually it'd be in a TJ. This is just the engine. I've been told the 2000s and 01's were prone to head cracking but just wanted to check. He says its got 80k miles and needs a valve job and head gasket. If its decent I might just run it. But really itching to do a 4.6.
Talyn
NAXJA Forum User
- Location
- Radford, Communistwealth of Virginia
Supposedly the factory fixed the bad 0331 head casting in 03 or 04. I know that there are some difficulties putting a WJ block into an XJ, but I don't know about a TJ.
If it needs a valve job and head gasket and.or you are planning to build a stroker I would try to find a block out of a TJ instead of the WJ one.
If it needs a valve job and head gasket and.or you are planning to build a stroker I would try to find a block out of a TJ instead of the WJ one.
beraad44
NAXJA Forum User
- Location
- Bell Buckle, TN
i got a 03 TJ engine in my XJ. it was taken out of a wrangler then into a WJ then into my jeep. it runs great it had 60000 miles on it. i had to put a head gasket and waterpump on it. the head is slighlty warped to i will have to get it milled. its great because now the alternator is on top away from water. id say go for it
FlameRedTJ
NAXJA Forum User
- Location
- Lawrenceville, GA
So that 03 engine has the alt on the top of the engine? My 2.5 is torwards the bottom end but hasn't been a problem. This 4.0 should be the same. How are the intake manifolds on the 02's?
beraad44
NAXJA Forum User
- Location
- Bell Buckle, TN
the intakes are the newer more curved design and have much more room for air. your supposed to get more power.
