GM vs AMC 4 cylinder engines - JeepForum.com
 
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post #1 of 6 Old 01-08-2012, 05:21 AM Thread Starter
Fatbook
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1983 DJ 
 
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GM vs AMC 4 cylinder engines

How do you tell the difference between these two 4 cylinders motors? In '83 the DJ5L had a chevy 4,'84 it had an AMC 4.The manufacture date on mine is December 1983,model # DJ5M.But they also used a Buick motor.I can't find any markings to verify.There is no removable pushrod plate on left side.


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post #2 of 6 Old 01-08-2012, 05:31 AM Thread Starter
Fatbook
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1983 DJ 
 
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It seems I may need help with my project,wish my son was home.He's good at this stuff,(damn,and I taught him).
The jeep has not been started since '06.Yesterday I tinkered some,just to get the feel of things.Hooked up the battery charger and heard a buzzing noise under the dash,sound's like a door buzzer,DJ's don't have door buzzer's.At first I thought it was the heater box,but it seem's like it may be coming from the "silver box" onthe left side.I can move a disconnected wire and it will stop.Problem is I don't know what this box does.

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post #3 of 6 Old 01-08-2012, 07:11 AM
243
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1978 FSJ Cherokee 
 
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If you can post some photos it will help.


GM 151



AMC 150


1978 Cherokee, TBI 360/T400/QT...6.0/6L80/NP241C in the works...
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post #4 of 6 Old 01-08-2012, 09:22 AM Thread Starter
Fatbook
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1983 DJ 
 
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see the pics in thread titled dj5 pics

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post #5 of 6 Old 01-09-2012, 08:05 AM
CSP
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The easiest way to tell is to look at the intake and exhaust manifolds.

The GM is a crossflow engine with the intake on one side of the block and the exhaust on the other. The AMC engine has both manifolds on both sides of the block.
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post #6 of 6 Old 01-09-2012, 08:16 AM
CJ258
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Doesn't the Chevy have covers on the side of the block to replace lifters like the I-6.
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