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Discussion Starter #1
  • So a guy says he has a early thunderbird motor. From alternator location it is a modular motor.. How can I tell if it's a 94&95 motor or a 96&97 one and are they interchangeable. Thanks a bunch for any info.
 

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1994 Cougar XR7 DOHC/5-Speed
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Obvious = 96-97 uses a plastic intake with the throttle body in the center facing sideways, 94-95 uses an aluminum intake manifold with the throttle body in the rear facing forward. Not so obvious = there arent side bolts in the side of the block for the 5h main cap on 94-95s and 94-95 heads will have a F4 prefix at the start of the part number, 96-97 will have F5.


Avoid the 94-95 one like the plague.
 

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Discussion Starter #3
Even if it's for 200 dollars and I may use it as more of a learning motor. Or rebuild it with more of attention to the small details I have always heard the early the 4.6 the more fragile they are and this one does look like it has a straight throttle intake.
 

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1997 Thunderbird 4.6, 1998 Mark VIII LSC
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And transmission. :)
 
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You might want to search to see if the 02 PI engine used the really crappy timing chain guides that broke to pieces and trashed engines.

The 03 PI engine I had did; the clue is the Plastic tensioners.
 
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