Diesel upgrade!!!
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Freshman User
Joined: Nov 2002
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From: fowlerville mi USA
Diesel upgrade!!!
Got a good line on a 93 cummins 5.9, 130000 mile on it how does that sound in a 1974 F250 4x4 however unfortunatly a dodge trany to go on the back of it. think this could solve my fuel milage problem though!! any one put a cummins in and have any ideas suggestion (don't rip me to hard i am not wild about the d-word tranmission talk about building in a weak link!!)
Lead Driver
Joined: May 2007
Posts: 6,993
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From: Costa Mesa, CA
lots of people doing this. If you head down to the motor swap section you'll find a few. Until then here is a link to my swap. Should be similar enough for you - since it's a 74 F-250 4wd as well
https://www.ford-trucks.com/forums/7...-crew-cab.html
https://www.ford-trucks.com/forums/7...-crew-cab.html
Lead Driver
Joined: May 2007
Posts: 6,993
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From: Costa Mesa, CA
that would be www.ford-cummins.com - but I would suggest doing a search about them 1st.
Some people have used them. I won't pay what they are asking for parts that I could weld better blindfolded
Some people have used them. I won't pay what they are asking for parts that I could weld better blindfolded
Lead Driver
Joined: Feb 2000
Posts: 5,374
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From: Palm Bay, Florida
WOW!!! Never heard anything bad about these folks until now.....Sorry for the wrong link, its www.fordcummins.com that will get you there!
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Fleet Owner
Joined: May 2009
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From: Gilbert, PA
WOW!!! Never heard anything bad about these folks until now.....Sorry for the wrong link, its www.fordcummins.com that will get you there!
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Lead Driver
Joined: May 2007
Posts: 6,993
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From: Costa Mesa, CA
I have heard people who are pleased and people who are not.
I looked at their stuff a while ago (I think they have more parts like trans adapters available now) and I wasn't super impressed with what you got for the $$. I was looking at motor mounts and wasn't super impressed with what you got for the $$.
Then again I am kind of a fab snob and even the de-stroked stuff costs a lot for what you get... 3 pieces of steel MIG welded together (motor mounts) for over $200 or so - NO thanks!
I looked at their stuff a while ago (I think they have more parts like trans adapters available now) and I wasn't super impressed with what you got for the $$. I was looking at motor mounts and wasn't super impressed with what you got for the $$.
Then again I am kind of a fab snob and even the de-stroked stuff costs a lot for what you get... 3 pieces of steel MIG welded together (motor mounts) for over $200 or so - NO thanks!
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Posting Guru
Joined: Jun 2002
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From: where the deer and antelo
Got a good line on a 93 cummins 5.9, 130000 mile on it how does that sound in a 1974 F250 4x4 however unfortunatly a dodge trany to go on the back of it. think this could solve my fuel milage problem though!! any one put a cummins in and have any ideas suggestion (don't rip me to hard i am not wild about the d-word tranmission talk about building in a weak link!!)
If you do the swap buy the whole donor, you will need a lot of parts from it.
Fuel mileage will be about the same as the Dodge. I get an honest 21 MPG on the highway. Best ever was 23.9 empty with a tail wind. Worst ever was 16 with a head wind, loaded Uhaul trailer and the bed full.
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Joined: Jul 2009
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Is this with the 12v 5.9? Mine does not seem to get that good of mileage. I haven't really tested it yet, but I figure it at around 15mpg unloaded.
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Freshman User
Joined: Nov 2002
Posts: 39
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From: fowlerville mi USA
Wow, thank you all for the info, if i get it i am getting the whole truck and it is an auto, it is a non intercooled one and i will be changing that!!, I have a feeling this swap may take some time however!! I can live with a AVG MPG of around 20 it sure beats 8! Expecialy when all you have is a 19 gallon cab tank
Posting Guru
Joined: Jun 2002
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From: where the deer and antelo
My engine is a '89 12 valve with about 300,000 miles on it. I was getting about 18 MPG before I installed 3.54 gears. I run stockish size tires.