engine interchangeability
engine interchangeability
Posting Guru
Joined: Sep 2002
Posts: 1,897
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From: Northeastern Pa - USA
a 6.9 will fit, a 7.3 will fit and a factory 7.3 turbo diesel will fit. the power stroke wont without many changes and alterations in the electrical system. some guys have gone over to the cummins diesel with alterations.
Posting Guru
Joined: Sep 2006
Posts: 1,309
Likes: 2
From: Plainfield, IL
If your going to do a swap I would go with a 7.3 not a 6.9. I think that a stock 7.3 has alot more power. not enough to make it a hot rod, but just that little bit more to allow you to get the job done. my .02
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
Install the turbo off the original motor and the HP is no different.
A 6.9 is rebuildable without using sleeves.
A 7.3 is not rebuildable without using sleeves.
The HP difference is 10 HP on the stock fuel settings on the NA motors.
A 6.9 is rebuildable without using sleeves.
A 7.3 is not rebuildable without using sleeves.
The HP difference is 10 HP on the stock fuel settings on the NA motors.
Posting Guru
Joined: Aug 2006
Posts: 2,175
Likes: 0
From: Kent WA
I'd go with the 6.9 - for longevity.
The 7.3s are prone to cavitation problems. The cylinder walls are so thin to start with that they are basically non-rebuildable as well. Sleeving also seems to be a problem with them. Right Dave?
The difference in power between the 6.9 and 7.3 is small and can be made up for in other ways. Want an engine that will last? Get the 6.9....
EDIT: Ya beat me to it by ONE minute Dave...
The 7.3s are prone to cavitation problems. The cylinder walls are so thin to start with that they are basically non-rebuildable as well. Sleeving also seems to be a problem with them. Right Dave?
The difference in power between the 6.9 and 7.3 is small and can be made up for in other ways. Want an engine that will last? Get the 6.9....
EDIT: Ya beat me to it by ONE minute Dave...
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