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Old Jan 13, 2013 | 05:20 PM
  #1  
Mark Alligood's Avatar
Mark Alligood
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Question Block Differences

If you take a mid 90's 7.3 and strip it down to the block and heads is it the same as one from a 99 or later block? I'm wondering because I picked up a 7.3 with 170k on it for $500 (I couldn't pass it up) and it came with a fresh tranny (less than 3k on it) I know the tranny's are different so I'm gonna sell that one to make some of my money back. I'm just not sure about the block. My guess is that they are the same with the add-on parts and the electronics being different but I just figured I would ask the experts.
 
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Old Jan 13, 2013 | 05:23 PM
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At the heart they are the same, subtle differences in webbing, etc., and can be used in a superduty with minimal bolt on swaps.
 
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Old Jan 13, 2013 | 06:34 PM
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What do you mean by webbing?
 
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Old Jan 13, 2013 | 08:57 PM
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This may help you out...
 
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Old Jan 13, 2013 | 10:38 PM
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Just to be sure, It is a powerstroke and not an IDI? The change was mid 90's.
 
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Old Jan 13, 2013 | 11:09 PM
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Originally Posted by Mark Alligood
What do you mean by webbing?
Sorry for not getting back to you sooner, but see Greg's post below. Page 1-8 is what I was referring to.

Originally Posted by Shake-N-Bake
This may help you out...
There you go, thanks Greg.

Here's some pics of what I was talking about too. I wouldn't think it's a big deal though, unless you are going serious hp.

Here's an early block.



Here's a late block.

 
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Old Jan 14, 2013 | 02:18 AM
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From: Bristol Tn
Bolt pattern for the intake plenums is also different from the super duty to the obs trucks.
 
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