Cylinder Head Compatability - JeepForum.com
 
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post #1 of 11 Old 06-13-2011, 02:50 PM Thread Starter
rak09
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Cylinder Head Compatability

Just discovered that my head on my 1983 CJ-7 4.2L is cracked. I was wondering if it is compatible with a 4.2L head out of a 1989 Wrangler.

Thanks,
Ryan

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post #2 of 11 Old 06-13-2011, 02:56 PM
CSP
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No it isn't 100% compatible. Your CJ uses 7/16" head bolts (only on 81-85 258s) and the YJ head bolts are 1/2". It could be used with spacers though. Summit Racing has the spacers, which are the same ones used with 4.0 head conversions.
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post #3 of 11 Old 06-13-2011, 05:05 PM Thread Starter
rak09
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I looked on summit racing and couldn't find the part, do you possibly have a link or part number.

Thanks
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post #4 of 11 Old 06-13-2011, 05:54 PM Thread Starter
rak09
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Here is another question for you, what if I could find one in the junk yard out of a cherokee the same year model as my CJ. It should be the same right. I really don't feel like messing with the spacers, but I'm moving a less than a month so I need to get something going quick.
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post #5 of 11 Old 06-13-2011, 05:58 PM
tdkask
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your BEST solution?

http://pensacola.craigslist.org/pts/2434870337.html

80 CJ7_360_32RH_D300_44/9"(4.56)_custom bumpers/cage
4" lift,tube fenders,comp cut_37s on H1 rims
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post #6 of 11 Old 06-13-2011, 06:06 PM Thread Starter
rak09
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Haha I've actually talked to him about it and it is out of an 87
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post #7 of 11 Old 06-13-2011, 06:09 PM
gosupes
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Quote:
Originally Posted by rak09 View Post
I looked on summit racing and couldn't find the part, do you possibly have a link or part number.

Thanks
Search "head bolt bushing"

http://www.summitracing.com/search/?...0bushing&dds=1

1986 CJ7, 4.2 w/4.0 head, TFI-HEI hybrid ignition, Clifford manifold w/Holley 390 w/cold air intake, OBA, 4.5" lift, Woody CV shaft and Tattons in front, 4.10 gears - lunchbox in front, Truetrac in the back, twin-sticked, blower upgrade for running topless, trying to keep it simple.

It's just a Jeep, and if you don't wheel it once in a while, it's not even that.
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post #8 of 11 Old 06-13-2011, 06:13 PM
superj
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an xj cherokee was not out at that time, if i remember right. if it was, it was a chevy v6 and not an I6.

a full size cherokee would have had the same engine, i would imagine though. if you can find an I6 powered full size cherokee or wagoneer

I don't feel like working on anything, at this time.
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post #9 of 11 Old 06-13-2011, 06:13 PM Thread Starter
rak09
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I actually found a 1983 4.2L engine (everything) for $300 but for that price I can get a re manufactured on 4wd
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post #10 of 11 Old 06-14-2011, 08:01 PM Thread Starter
rak09
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I ended up going with the re-manufactured one from AKC. It actually turns out that Advance Auto carries the same head as 4wd and they matched the price plus the shipping cost ($30). So after tax it cost $300.32. I priced out fixing up one of the other ones I found locally and it would have cost about $50 for the bushings and the $100 for the machine work and probably $50 for the head, so for an extra $100 I was able to get piece of mind and a warranty.
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post #11 of 11 Old 06-14-2011, 08:08 PM Thread Starter
rak09
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Should have read ATK not AKC
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