Swapping 351m with a 2001 7.3 powerstroke

[Pbrose11]

Needs some info on what needs to be done. I have a 78 f250 with a 351m and I'm planning on swapping it with a 7.3 powerstroke. I want to use my 4 speed behind it and I've heard I needs a bellhousing that with bolt to the block but we're do I find one. If any one has done this your help would be appreciated.
Thanks

 

[direwulf23]

I don't have any technical info to add, but I expect there will be a great deal of work/ troubleshooting involved in dropping a PSD in that old of a model due to the electronic controls.
A mechanical diesel will be a much more direct swap, and a project I am eyeballing myself. I am strongly considering dropping a 7.3L IDI into my '79 1 ton.

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[Pbrose11]

A buddy of mine is giving me the powerstroke with the wiring harness and I'm stuck on the powerstroke. I also have access to any other wiring I need. If heard of people using the idi but I want it to be a little bit different.

 

[79jasper]

Everything you need to know. Being a 2001 engine, I would stick a zf6 on it, or the 4r100.

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[OLDBULL8]

Your in for a big job.
What tranny are you going to put behind it?
Do you have excess to the Donner truck?
What front axle do you have? Might have to change that.
The 7.3 is about 400# heavier than the 351. Front springs need to be added for the extra weight.
The engine cross member relocated.
A larger radiator.
All the electronics, IDM, GP controller, PCM, ECM, Fuse panel, GEM module, Under hood relay panel.

 

[Andertusa]

F.W.I.W. -the 351M has the same bolt pattern for the bellhousing as the 385-series gas engines( 429 and 460) The Boss 302 and 351C used the 'small block bellhousing', the 351M 400, and the old FE's used the 'Big block bellhousing'. That means that THEORETICALLY any trans that will bolt up to those engines is interchangeable- well, plus-or-minus features like extra gears and such.

 

[db660r]

I know some of the older f250s that had idis in them had four speed so you could steal there bell housings. some people say you can drill out the holes of a big block trans housing to make it fit. I just used a zf5

 

[no mufflers]

since you have a 78 that frame is wider then the 76 and down so the front cross member is in a better location. I would get some hi boy springs from a 76 and down truck that will help with the extra weigh and will make the truck sit at least 3'' higher, they are also a direct bolt in.

EDIT: the frames are the same with, just checked. the front cross member is different from 76 to 78.

 

[compressionignitionrules]

F.W.I.W. -the 351M has the same bolt pattern for the bellhousing as the 385-series gas engines( 429 and 460) The Boss 302 and 351C used the 'small block bellhousing', the 351M 400, and the old FE's used the 'Big block bellhousing'. That means that THEORETICALLY any trans that will bolt up to those engines is interchangeable- well, plus-or-minus features like extra gears and such.

this sounds confusing.......351m/400 did not share the "fe" (360/390) bigblock bellhousing.

this is an interesting thread as I am thinking on doing a 7.3 powerstroke swap in winter 2016/17 on my 78 Bronco. watching, but have no personal experience on this swap. .

 

[compressionignitionrules]

sorry I do have some experience here. I mounted a 6.9 idi in a 1983 F150 in place of the 3006cyl. I used a 6.9 diesel bellhousing from a T19 trans but it bolted right up to my T18 in the F150 and the diesel clutch mated up perfectly. not a 7.3PSD but still a diesel swap experience.

 

[IDIoit]

the powerstroke and the IDI share the same adaptor plate. this is why we can run a psd ZF5 on a IDI.
i would go ZF5 IMO, but its your build.
theres a guy on youtube, Mark Fuggatto that modifys the 94-97 harness to meet your stand alone needs. i just had him modify a harness for my 7.3 powerstroke in my 63 ranchero.
the ranchero may be at the plate after my current build.
you must eithr have him do it, or learn the wiring to do such.
its a big chore, ive seen these builds come and go, but not many go anywhere.

if this is your first built, i encourage you to do it, but its not for the faint of heart.

 

[Andertusa]

this sounds confusing.......351m/400 did not share the "fe" (360/390) bigblock bellhousing.

The 352/360/390/406/410/427/428 'FE' engines, the 351M/400, and the 429/460 '385' series as-well as the 'Boss 429' variant engines used the 'big block bellhousing' and the 260/289/302/351 'Windsor', the 'Boss 302', the 302/351 'Cleveland' engines used the 'small block bellhousing'

Even though the engine architecture between the 351m/400, the 'Boss 302' and the 351C engines are virtually identical, the engines DO NOT share the same bellhousing, basically think of it as the 351M as a 'Cleveland' engine, but with a 'big block bellhousing' grafted in-place of the other design.

 

[compressionignitionrules]

385 series and the FE are totally different bolt patterns at the block, they are not even close.

 

[Andertusa]

385 series and the FE are totally different bolt patterns at the block, they are not even close.

Even if that particular snippet is in-error, which hasn't been proven here yet; everything else there is correct, which STILL means that the 335, and the 385 engines still use the same bellhousing, regardless of the other bit

 

[kent01]

Even if that particular snippet is in-error, which hasn't been proven here yet; everything else there is correct, which STILL means that the 335, and the 385 engines still use the same bellhousing, regardless of the other bit

Fe engines are a bell housing pattern all their own. The 429/460 shares the same pattern as the 351/400 m.
The 289/302/351 /351c. Have a different pattern among the small block group.

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