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Old 09-15-2006, 09:24 PM
superdutyjoe superdutyjoe is offline
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Bellhousing Pattern

I have a 2001 F-250 with the 5.4 and I was wondering if anybody knows if the bellhousing for the 5.4/6.8 has the same bolt pattern as the diesel? I might have a bit of a science fair project going on and I was just courious.

Last edited by superdutyjoe; 09-15-2006 at 09:25 PM. Reason: Missed engine size.
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Old 09-15-2006, 09:42 PM
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I think the subject of bell housing bolt pattern and motor mounts have been cover here or over at modular fords. I read both for mod motor stuff and I can't remember exactly what was decided and where is was decided that the 5.4 and 6.8 have the same bellhousing, but the motor mounts would be off.
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Old 09-15-2006, 10:44 PM
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I don't know if the gas and diesel bellhousing patterns are the same or not.
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Old 09-15-2006, 10:50 PM
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He's talking about v10 vs V8 I think. The V10 as I have commonly heard, is a 5.4 with and extra pair of cylinders.
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Old 09-16-2006, 12:48 PM
superdutyjoe superdutyjoe is offline
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I tried to find if it had been covered before in here but there are just so many posts of different subjects and everything, after an hour I decided to make my own. I was talking about between the gas motors and the diesel in the superduties. I know the V8 and the V10 have the same one, and you are right, a V10 shares the same bore and stroke as the V8. If it helps at all the diesel engines share the same bolt pattern as the older 385 series block (370,429,460).

See what I'm trying to do is I have a good running 5.9 Cummins at my disposal, and I have a 5.4 that is dieing a slow painful death. So when the 5.4 finally dumps out I was thinking about trying to put that Cummins in there. I've seen a few of these done but I was wondering if I was going to have to try to find a transmission also. Hmmmmm......
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Old 09-16-2006, 01:05 PM
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I guess i should read better at mid night.

Looking over factory techs website, it seems that the trans housings are the same. Transdapt doesn't list a conversion kit, so far it looks like the trans will bolt to either motors.
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Old 09-16-2006, 03:07 PM
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When did Ford put a Cummins in? I know of Caterpillars going in. I'm confused then, you're going to attempt to graft the Dodge diesel into the Ford truck. Man you must have some money laying around. Seems like a lot of fab right there. A Ford diesel might be easier, but I know you didn't ask that.

I'm pretty certain that the bolt pattern for a 5.9 is way different than any Navistar built diesel.

-Kerry
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Old 09-16-2006, 10:12 PM
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Ford never put a cummins in a light duty truck, they did in medium and heavy duty trucks but that's a whole different world. However in Gruman step vans they used the cummins 4 cylinder B series motor, which is the same motor as the 5.9 B series 6 cylinder in the Dodge trucks only with 2 less cylinders, and they sometimes mated this to Ford manual or automatic transmission. So floating around out there are cummins motors that will bolt to a ford big block transmission without any modification or new parts.

Now for how you can put the cummins motor in any truck you want. The back of the motor has an SAE #2 or 3 something like that, bolt pattern on the back, it's in a triangle pattern. It doesn't actually have a bellhousing on it, you bolt it on yourself, and it's usually made out of aluminum. To put a caterpillar in the same place you would use the same bolt on bellhousing. This is common on medium and heavy duty diesel motors. So anyway you take the motor out of the dodge, unbolt the dodge bellhousing pattern, bolt on the ford one, and you can bolt it to a ford transmission if the clutch spacing is correct, if not then you need spacers and what not but that comes later. After that you can haul the dodge away for scrap because that's all it's good for. To put a cummins in place of a powerstroke costs about 2500 give or take, mine if I donít need the tranny should be cheaper.

Now why wouldn't I put a navistar in there, because I would want a powerstroke because in my opinion IDI sucks. To put a powerstroke in there I would need another wiring harness, computer, gas pedal sensor things, sending units in the tank, and I would have to buy the motor itself and a good running ford diesel is going to be a lot of money. You could get the DT444E out of a school bus, or medium duty truck, but then it gets back to the price, and then you have to change the oil pan and pick up because they are front sump and more of the wiring harness-computer-gas pedal-fuel delivery stuff.
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Old 09-16-2006, 10:13 PM
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Oh by the way, Thanks ReAx for the information.
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Old 09-16-2006, 10:47 PM
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No problem. If you are serious about doing it, contact advanced adapters or transdapt. AA is more likely to know something.
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Old 09-16-2006, 11:30 PM
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The things you learn...

Cool... I'd love to see the end result.

Edit: Oh, yeah... forgot to mention, I believe Ford uses two different S6-650s ZF-6 spds between the gas models and diesels... so I'm gonna guess that the automatic transmissions are not the same. Something about torque based decisions there - I recall reading that the pattern is different. Have you posted this in the diesel or SD forum?

-Kerry

Last edited by kspilkinton; 09-16-2006 at 11:38 PM.
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Old 09-17-2006, 12:18 AM
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The diesels would have to have different ratios because of the limited RPMs. Much like the autos would have different pn of the different number of clutches and heavier duty parts.

You really need to find some one with first hand experience, I am just guessing here and I can guess some wild stuff.
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Old 09-17-2006, 12:18 AM
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