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Old 07-17-2019, 02:52 PM   #15
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You better check the rear differencial ratio.

You may end up with a 40 MPH MH If its to high.
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Old 07-17-2019, 05:52 PM   #16
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To me, this falls into the category of "if someone has to ask, it is probably not a good idea"...
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Old 07-18-2019, 07:57 AM   #17
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Or the question, "Just because you can, should you?" In fact, can you? Ever heard of someone who did this?

Just from pure schadenfreuda alone, I would like to follow that thread.
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Old 07-19-2019, 10:14 AM   #18
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Originally Posted by FatChance View Post
To me, this falls into the category of "if someone has to ask, it is probably not a good idea"...
Perhaps the OP swallowed the worm and had a vision
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Old 07-19-2019, 12:08 PM   #19
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Kelly; Welcome to the forum..

Not economically viable, but certainly sounds like and interesting project..
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Old 07-19-2019, 11:22 PM   #20
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I personally think its a good idea. I have seen many swaps in different vehicles. I think the hardest part will be making an adapter for the transmission. Other than that should be straight forward. I say do it.
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Old 07-20-2019, 08:15 AM   #21
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It can be done , but your current transmission ,torque converter will not work with the Cummings engine. Your best bet would be to get a complete engine , transmission , electronics & wiring from a wrecked vehicle . If you are good at fabricating , it should be no problem getting it installed. The rear axle ratio may also have to be changed. Have your coach weighed first and make sure the front axle can handle the extra weight of the diesel. Most coaches are near the limit. If you are on a P30 chassis chances are good you are already at max front end weight.
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Old 07-20-2019, 08:30 AM   #22
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I think you're talking about a Workhorse??.

If this was an F53, Ford made a diesel pickup with a 4R100 tranny. This combo might make a reasonable swap in a F53. Probably need to bring over the Ford PCM and modify the tune for speed sensors, etc..
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Old 07-20-2019, 09:35 AM   #23
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Starting in 2007 Workhorse offered the Wxx chassis with an Navistar MaxxForce 5 V6 engine and added a MaxxForce 7 V8 in 2009. Converting to one of those would be easier, in the sense that the changes and necessary parts are already known.


The low-end torque/horsepower of a diesel would be a useful improvement but I'm doubtful the amount of improvement would be worth the cost and effort of the change, even assuming you do all the work yourself. It would be more of a fun tech project than an economic or performance benefit.
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Old 07-20-2019, 03:18 PM   #24
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The OP hasn't been back to visit since his posting.....
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