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Unread 02-21-2013, 10:26 PM   #1
norcallogger
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1974 CJ5 
 
Join Date: Feb 2013
Location: eureka, CA
Posts: 1
engine swap question from a rookie.

My first of what im sure will be many posts as I begin my adventure of building my cj5 project.. but I think its an easy one will a 258 out if a 1987 cj 7 bolt up in a 1974 cj 5 with a 258 in it? Are the motor mounts the same? If they both have manual transmission? And is there any computer gadgets required for the 87 motor? Any help will be appricated and thanks in advance.

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Unread 02-26-2013, 04:56 PM   #2
foggybottombob
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1984 CJ7 
 
Join Date: May 2008
Location: Monument Colorado
Posts: 5,821
you will get more attention on this question in the CJ forum.
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Unread 02-26-2013, 05:41 PM   #3
VooDoo2
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1978 CJ7 
 
Join Date: Jun 2010
Location: Brisbane, Australia
Posts: 639
Yes it will bolt up with no issues.
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Unread 02-26-2013, 10:56 PM   #4
Jeepkid1995
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1979 CJ7 
 
Join Date: Nov 2011
Location: kelowna, British Columbia
Posts: 201
I agree, it will bolt up no problem. I would, however, double check that the engine you are purchasing is a CJ 258, seeing as there is no such thing as an 87 CJ. Last one was in 86. If it is an 86 engine, there will be a ECM tucked under the dash you will have to deal with, shouldn't be too much of a problem, though. Just swap it and all the wiring over to the good CJ.
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->'79 CJ7 (VIN Says it's a 5, wheelbase says otherwise), 6 inches of spring lift, awaiting an MC2100 on a teamrushed MSD'd 258

-->350 time. '95 block SBC, stroked to 383, dremeled heads and big 'ol intake, maybe a Holley 750 CFM, not sure yet

--->"Safety? Buy a Volvo. Never buy a CJ, or a Chrysler Jeep knock off, for safety, fuel mileage, reliability, handling, ride, comfort, aerodynamics, quietness, convience, stability, low maintenance cost, performance, or ease of use. The only reason to buy a CJ is because you are absolutely, incurably nuts." -OldTexas
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