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98 Explorer 4.0 OHV engine swap from a 96 4.0 OHV? Will it work?

Discussion in 'Stock 1995 - 2001 Explorers' started by FLSnake, May 22, 2012.

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    1. FLSnake

      FLSnake New Member

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      I have a 98 Explorer 4.0 OHV V6 with a bad engine (lower end),

      I have a donor vehicle, 96 Explorer 4.0 OHV V6.

      I see some slight differences in the wiring harness from a quick visual inspection but the core engine looks the same.

      Will they interchange? I have been told that 96/97 are the same and that 98-01 are the same?

      Thanks
       
      Last edited: May 22, 2012
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    3. bilzy7

      bilzy7 Active Member

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      Worst case scenario, you have to swap tranny engine and wiring harness. I know only issue with the same engine being swapped with a newer version, is how the transmission is controlled by the computer.
       
    4. Sedition

      Sedition Engine Repair Guy Elite Explorer

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      Ok lets clear this up a little. Your title says that you currently have a SOHC V6 and you want to swap it for a OHV V6 is this correct?
       
    5. bilzy7

      bilzy7 Active Member

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      His thread title says SOHC that's right... I was going off the post, both are labeled OHV...
       
    6. bilzy7

      bilzy7 Active Member

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      I think he hit c instead of v on the keyboard, they are next to eachother. There is no S infront of the ohc.
       
    7. FLSnake

      FLSnake New Member

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      Sorry, was a typo in the title, they are both OHV engines, I edited the title to correct
       
    8. Sedition

      Sedition Engine Repair Guy Elite Explorer

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      In that case it would be a simple change over. I would take out the engine and wiring harness only leaving the gear box and aircon compressor in place. I would take the new wiring harness with the new engine and plug it strait into the rectangle plug in the firewall, that way you don't have to worry about different types of connectors for the same componants on the replacement engine.

      Should be a nice easy job, Enjoy ;)
       
    9. mp40

      mp40 New Member

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      Ah, I think that there might be a slight problem with this swap from the flex-plate side.

      The 1990~1996 4.0 used a 6 bolt flywheel/flex-plate and the 1997~up 4.0 uses an 8 bolt flywheel/flex-plate. This can pose a problem from the converter side.

      I think that it would be best if you obtain an 1997-up 4.0 for this swap it would be easier.
       
    10. snoranger

      snoranger Elite Explorer

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      Thats no big deal, as long as they are both autos (or both manuals). They only difference in the flywheel/flexplate is the number of bolts that attaches it to the crank. The flywheel attachment points are the same.

      Just keep the flywheel/flexplate on the engine it came with.
       

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