258 and 4.0L oilpan ? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-26-2006, 09:54 AM Thread Starter
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258 and 4.0L oilpan ?

Will a '80 258 oil pan fit onto a '94 4.0L? I ripped a hole in my 4.0L oil pan this weekend and have a 258 pan on the old engine. Will it fit?
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post #2 of (permalink) Old 09-26-2006, 09:58 AM
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Re: 258 and 4.0L oilpan ?

Nope...
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post #3 of (permalink) Old 09-26-2006, 10:31 AM Thread Starter
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Re: 258 and 4.0L oilpan ?

wishful thinking on my part after seeing a oil pan gasket on ebay that was listed for 258's and 4.0L.


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post #4 of (permalink) Old 09-26-2006, 10:37 AM
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Re: 258 and 4.0L oilpan ?

Really! What's the difference? I used a later pan when the original rusted out. It had the sump farther forward so I had to use the pickup tube that matched it. Outside of that it works fine. I don't know what year the engine was; it was upside down in a puddle in a junkyard.
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post #5 of (permalink) Old 09-26-2006, 08:05 PM
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Re: 258 and 4.0L oilpan ?

last time i checked they seemed to bolt up the same the pickup is going to need to be customized or and older one put on
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post #6 of (permalink) Old 09-26-2006, 10:07 PM
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Re: 258 and 4.0L oilpan ?

4 Wheel Parts Hardware lists one part number for the 258 (1968 to 1990) and another for the 4.0 (1991 to 2006)

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post #7 of (permalink) Old 09-27-2006, 07:22 AM
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Re: 258 and 4.0L oilpan ?

They 4.0L oil pan gasket can be used on either. I used the 4.0L gasket on my 258.
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post #8 of (permalink) Old 09-27-2006, 02:33 PM
 
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Re: 258 and 4.0L oilpan ?

[ QUOTE ]
wishful thinking on my part after seeing a oil pan gasket on ebay that was listed for 258's and 4.0L.


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[/ QUOTE ]

I've bought oil pan gaskets for a 258 that came with 3 side pieces, the front and the rear. You use the two sides that you need. Perhaps that's how it fits both 258 and 4.0.
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post #9 of (permalink) Old 09-27-2006, 06:45 PM
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Re: 258 and 4.0L oilpan ?

An article in JP Mag. that gave the history of the 4.0 liter engine said that it was an evolution of the AMC developed 2.5 liter I-4 engine rather than a de-stroked 258 ci. that I always thought it was. Go figure.
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post #10 of (permalink) Old 09-27-2006, 10:21 PM
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Re: 258 and 4.0L oilpan ?

I think that the JP article said Chrysler 2.5 not the AMC. I too thought that the 4.0 was a grandchild of the old AMC 232.

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