If you are trying to do this and keep the IFS then you will have to run a 4bt Cummins. And depending on cab bed configuration you might be stuck with the 4bt anyway. I know on my regular cab short bed the measurements that i took off Jesse's Farmboy Fabrications F150 by the time i got to the back of the trasfercase there really wasnt enough for a DECENT rear driveshaft.

For the MOTOR SWAP id set aside around $10k this will get the motor transmission and t-case in and you will have money for the fuel lines and all the LITTLE things, and there are alot of little things.

* If you plan on buying a used (remaned motor then you will probably be closer to 15k, and if you are doing the 6bt swap and SAS id plan on 20k to get the truck totally done. These prices may seem high but if you have that much then you will know you can finish and you wont run out of funds.

 

the reason the 6.0L sucked was navistar knew it had probs but ford told them to put it in production anyways. navistar knew about the probs wanted to fix them but ford told them they wanted the motor now..... a bunch of BS

they never should have went away from the 7.3L

i think the 7.3L and 5.9L are about the 2 best diesels in the world.

you could go old school and throw a 6.9 IDI lol.

 

I was looking into to straight 6 cummins a while back. I love the cummins engine, I knew a 7.3 wouldn't fit in there their just my favorite all around truck.

24 valve cummins is insane I know a guy who dropped one in a 250 and it blows black smoke like a champ

And as for the 4 cyl Is that really a worthy swap? I know diesels are tough but it seems like the 4 would just be too small

 

throw a bigger turbo at it, it'll be fine

 

the 7.3 will fit you just need front end mods to support the weght.

and im not sure about the down pipe the motor it self will fit.

 

The 4bt I was gonna put in mine was a 350hp 700tq monster and that was with the stock turbo. It had 100hp injectors so all it needed was a bigger turbo to really unleash the power.

look at 4btswaps.com the 4bt Cummins is a great motor and has a good power to weight ratio. The 5.9L 12v and the 3.9L 4bt are essentially the same motor with the only exception is that the 4bt is 2 cylinders less.

 

I posted the video a while back about a '97-'03 F-150 supercab with a powerstroke in it, the truck was a red 2 wheel drive and it appeared to move on down the road with ease...


I considered a diesel for the wife's expedition, but a 6.8 (V-10) will be a whole lot easier and will pull quite well with some boost

 

Question and sorry to thread jack. If you put a v10 in say my truck, do you improve gas mileage since it is a much larger motor pushing less weight? This seems a lot easier to do than a diesel swap in order to achieve more power.

As for the diesel, I've looked at some random motors on craigslist with price ranges from 1-2k for the 7.3 without trans and usually without turbo but sometimes with. Does that seem fair or is something off? The motor tended to have about 100k on them. Stuff like this has always sparked my interest. I can lift them but when it comes to motors I don't really know. This is basically for when my truck is no longer a daily driver and just a weekend toy. Diesel is preferable, but a v10 would be pretty nice too. Thanks and sorry for thread jack.

And when you say you can only run the cummins, does that mean the 7.3 is out of the question without a SAS conversion? Does it all have to do with the crossmembers and frame and how strong they are?

 

The v10 will work. There was a guy on here that did it, he claimed he was getting 17mpg which is way better than i've ever heard of a 6.8 getting. Either he was wrong or the more power in the lighter truck is bringng the miles up.

Diesels are 1000pd motors. Thats alot of weight on everyhing up front, especially since its for half that weight.

 

Most people choose Cummins for swaps like this because they are easier to wire and get running. Plus they are ALOT easier to make power out of. The 4bt is more than likely the only diesel that you could possibly put ontop of your IFS suspension without tearing it apart and im sure it would accelerate ball joint wear. With a diesel swap in one of these trucks id seriously think about doing the SAS first.

 

cummins is the best diesel on the road not to much argument there its the only true highway diesel. the duramax is a great diesel! how come no one brought it up? best tranny! bullet proof allison man! im not impressed with the 6.0 6.4 or 6.7 6.4 n 6.7 might be fine trucks and all but if your gonna spend the money why not just get the duramax or cummins. put the allison in the cummins then you can appreciate the power being backed up by a worthwhile tranny

 

Im sorry but the allison tranny's are getting alot of praise for how often they go out. Not sure what it is but i know of a few people that have blown them behind their D-max's.

I honestly would lump the 6.7 in with any other Ford Offered diesel. Its their first crack at it and everyone that ive talked to LOVES them.

The main reason that GM doesnt sell more Duramax trucks is because of the IFS frontend. Its just something that doesnt appeal to most 3/4 - 1 ton guys

 

agreed on the chev front end. i know of guys who have blown trannys out of everything but lots of people are stupid with the power. Iv heard of more guys blowin the cummins tranny and i guess im in no position to say anything bout the 6.7. i have heard from several guys who have them as company trucks say the rear end is crap but they were a little brand loyal. anyone running over 90hp off stock is gonna end up blowin the tranny if they dont get a rebuild or anything

 

i still say motors should stick with there brands. powerstroke in a ford. cummins in a dodge and durmaxipads in chevys.

i hate seeing all these Fummins. its cool they swaped it and did all that work but id rather see a powerstroke.

yes while most of the powerstrokes are junk only the 7.3's and 6.0's *6.0's when studed and fixed proper* are good motors this new 6.7 looks to be promising as well.

the 7.3 weghts i belive 1,200lbs with all fluids in it. a 5.4 weghts around 500 or so a V-10 i think is 680lbs. just what ive heard and some guessing...

me and a buddy have picked up a long block 5.4 it was heavy. we've slid a 7.3 we've never picked it up. we also picked up a 460long block with a C-6 we had a 3rd guy for that one thoe

17MPG with a V-10 not bad. id like to see mileage of a 7.3 in an F-150 bet itd be way up there. i threw around this idea for a long time when i was having a prob with spark plugs.

 

any tiem you add a noticeable amout of power and torque, you end up driving gently and that's what increases the mileage






I've been down this same road and the V-10 in my situation will be the best choice considering I have a supercharger already that will bolt directly on and the transmission can be built so I don't have to worry about new drive shafts or anything