Ok first time on this site so I have alot to learn. I was looking into items to help add power because every ford owner knows a 5.4l f350 is way under powered and has trouble getting out of it's own way. Today I was discussing some things I wanted to do like cold air intake and headers, bigger throttle body and throttle body spacer and high flow car. Well my friend brought up about doing an engine swap on it. Now if I would decide to do that I would go to a junkyard but what I want help with for you guys is pretty much everything involved with it. If I did diesel would it have to be the same model years as my 2005. For example would I only be able to get a diesel motor from a 2005 model or what? Being as tho I already have a 350 super duty I would imagine the engine compartment specs/size would be the same as a diesel version. I've read my 4r100 tranny would still work with the diesel but wont be an easy bolt on and also if I were planning on doing heavy hauling then I should upgrade that. Let me know if this is all true or not. Also all the parts I would need from the diesel and amout of time and money (rough estimate is fine). Please anything you guys have to help would be great and any ideas as well would be greatly appreciated. Until today I never considered this as an option so I never really looked into it and there are sooooo many threads about it to look thru. Came here for this cus fords are the best trucks out there and also have the best owners too. Any sort of help is greatly appreciated. Thank you guys

 

consider a Coyote swap from a mustang or F150. The motors have gotten rather cheap on the used market, Iv'e seem 12k mile examples for as little as $1800. Ford even makes a complete adapter harness and ECU swap kit for $1500. you'll need to figure our how to mesh in the 4R100, and you'll have to add in an electric PS pump, but since it's a mod motor, it should drop right on to your motor mounts and bolt to the 4R100.

 

Thanks that doesnt sound bad at all. I expected to encounter issues but I'll make it work if I decide too.at least I have somewhere to start now thanks to you. Now I am looking for extra power of course. And preferably diesel.. chances are it will be s long shot for me to do the swap from gas to diesel but I at least wanted to get some other opinions on it just to see if it's worth it if you know what I mean? I just have so much to do with the truck yet its endless it seems haha but thank you again

 

You're starting the post from the premise that the 3V 5.4L F-350 is underpowered, which I consider false.

Want a little more oomph? Regearing the truck. 4.30 or steeper gears (depending on tire size) will be your best bang for the buck.

As far as swapping to a compression ignition engine, there are a lot of kits to install Cummins 5.9L and 6.7L engines into Gen 1 and Gen 2 SD trucks.

The question on the pollution control devices/engine year depend on your local laws.

 

^ I completely agree with Redford, if you trully want an engine swap i suggest you buy the truck equiped with the powerplant of your choice. Engine swaps are not cheap and are time consuming, your best bet would be to find a donor truck so you can have all those little odd parts that are hard to come by.
IMHO i would do a gear swap to 4.30 or 4.56 and custom tunes.

 

Easiest Gas to diesel would be to go to a cummins. You can literally buy the entire kit to do it. Its not necessarily bolt in, but the kit would have all the adapters, motor mounts, etc. that you would need.

If it were me, and I were in your position, I would be looking at trading or selling then buying the truck that I want with the engine I want. If you aren't in the position to do that, then a gear swap would do wonders for you and only cost you a couple grand totally setup by a professional.

 

 

I'm not doing a swap I really just wanted to get some opinions on it and just find out more info about it. That's all. In my opinion my f350 thst weighs like 6600 lbs with no one In it and no gas in the tank so if u add ppl into it and full tank of gas 3 inch lift and bigger tires it has trouble getting out of it's own way. I drive it so I know. But I do love the triton and has been extremely reliable for me. I had a deposit down on s diesel but when I asked the dealer to remove the aftermarket fender flares to make sure it isnt rusted (most common spot to rust) he tells me " I cant take them off but my garage guy assures me there is no rust" after that I obviously backed away from it and got a really good deal on the 5.4 I currently have but I simply just wanna get the most out of the motor I can for when I tow or haul stuff. Somebody randomly brought up finding a motor in a junk yard so I figured I would get some of ur opinions on it and I appreciate the responses. Ur right its deff not worth it. I might just try to tune it and maybe high flow cat and intake and that's it unless u guys have some other ideas.

 

And ford upgraded shortly after my 5.4 so they obviously wanted more power too...or maybe it was cus ot the issues they encountered with it. I personally have had no issues with it and has been great for me

 

I wasnt complaining about it. Just simply wanted to get a little extra hp and torque out of it and was curious about the motor swap thats all. And I bust my *** off with overtime so I could remodel my entire house with new siding new windows added front porch and central air and paid it off within a year and a half so unfortunately I dont hshs the luxury of selling my 19 year old truck that I love and took great care of for a newer one

 

Leave the kittys stock you wont gain any power unless you are up in 4-6k rpm. Gear it low and tune it, my wifes Excursion has the 2v 5.4 and it sure gain some umph with the 4.30's, Y pipe and 5star tunes.

 

Unless I have missed something, this truck is a 2005 so it is just under 14 years old.

I didn't see any mention of a V-10 swap. Is that not feasible, maybe if you had the donor truck available?

 

I have an 03 f250, has the Super 60 front end, 4 inch blocks in rear, came that way, might as well say 350 on it, but it says 250. I have the 5.4, 4.10 gears, scales out at 6440. It does have Gibson headers, throttle body spacer, cat removed, restrictors removed, three inch pipe, magnaflow, and hypertech tuner. Has 285 16's on it, I have no problem with power, tows my 10,000 pound boat and 10,000 pound camper just fine, carries a nine and a half foot western v blade and pushes snow like a tractor. Don't really think is underpowered at all, I think you might just want more power? Your best bet would be just to sell the one you got and buy a diesel.

 

What you were reading was wrong. 2004 was the last year for the 4R100. All 2005s with automatics had the 5R110W, not the 4R100.

The good news is that the 5R110W will bolt to the diesel engine. The bad news is that the torque converter won't bolt to the flex plate, and anyway it's stall speed is too high for the diesel. You'll need to change to a diesel torque converter. While the trans is out you will need to rebuild it because the 5.4L version of the 5R110W has less clutch plates and won't last long at all behind a diesel. You'll need to upgrade it to 6.0L/6.8L specs.