Will it physically fit? yes.
Will you be able to use any of the supporting hardware? Very little if any-that kit is designed for an F150. There's gonna be alot of custom work involved,but it will bolt on,and function fine on a Super duty.
JL

 

Thanks JL. I believe that you are the first person to acknowledge that there are differences in the 5.4L engine that preclude me from using certain parts and/or kits on my F350. It appears that I will have to do some "trial and error" fitment of select aftermarket parts to make the desired upgrades. I hate going this route because it can be expensive, especially if the retailer will not allow for the return of the incompatible part.

As for the discussion of the potential untapped power of the 5.4L 3V, I did get some good ideas even though the opinions vary significantly on what really works.

Thanks guys!

 

Most of the main components will work,but the air induction tube will not, the PCM will not, the pullies for driving the S/C might need modification. The engines are mechanically identical,but it's simple accessory drive,etc that's likely to be different for the different chassis. If it comes with a fuel pump-there's no guarantee that the supplied pump will even fit the bracket/basket in the tank of the Superduty. Just be ready for some work if you get it-it is not going to just "bolt-on". Honestly,I've never seen a single S/C kit that was truly just a "bolt-on" with no modifications or custom fitting of some kind.
JL

 

agreed... I think highest power n/a was a short stroke big bore 5.4 dohc put together by VT before they went under... made somewhere around 700hp and spun to 9-10k rpm if I'm not mistaking...

 

Yeah. One of the current leaders in the Ford modular engines Sean Hyland Motorsports. They've got variations of the 4.6L in SOHC and DOHC, with the badder ones being the 4V DOHC versions. They're making around 450HP on a custom version, no supercharger, and around 600HP with 15psi supercharger.

On the 5.4L side, they've got the great Shelby GT500 crate engines, which are the 5.4L, 4V, DOHC engines making anywhere from 550 - 800HP depending on power adders.

TX

 

Never been a fan of SHM. They got their name on Mihovetz's car, and it seems ever since he's been setting and breaking records for the mod motor world, they act like every bushing they sell is plated in gold or something...

they do however make that big bore 5.4 ( 6.0 liter ) that's very tempting for a build...

 

Last weekend's episode, Sean Hyland Motorsport put together a normally aspirated 4.6L for Muscle Car (TV show on Spike) that dyno'd at 491 HP and 415 ft/ls of torque on pump gas. No high strung exotic parts, no power adders, just a powerful street engine.

Sean Hyland Motorsport - Modular Crate Engines

It was Sean Hyland that claims he is building engines for racers that are pushing 850 HP normally aspirated. He'll sell you a 500 HP 4.6L crate engine, or if you want to get exotic he will sell you a 4.6L with 800HP/700TQ , but it is a forced induction engine.

He also has a SUPERCHARGED 5.4L SVT MUSTANG COBRA ENGINE with 500 HP output, but it probably utilizes the 4V heads.

 

SHM is probably one of the biggest bunch of liars and crooks on the planet. If they told me the sun rose in the East and set in the West-I'd have a hard time beleiving them. I've seen enough of their shoddy work over the last 10 years to know that anyone that spends money there really hasn't got a clue,and are buying on hype and name alone. There is no way in hell that they are building a 4.6L that's making 800+ hp in N/A form. Ain't gonna happen with any cylinder head that's out there. There's just not enough airflow there to support it. It's darn near impossible to do that with an all-out race built 5.4L 4V with a blank check budget,much less anything with 49 less CI to work with. Do you honestly believe everything you're told by the "rental advertisement" shows on Spike? Everything they do is to show the vendor's product as the best that there is.
JL

 

You don't want that SHM aluminum 5.4L block.....it's a nightmare waiting to happen. I've seen it-it's got issues.
JL

 

If it'll make 500 HP on pump gas without a lot of modifications (bored to 5L, 4V heads with CNC porting and cammed) then 800+ HP isn't out of the realm of possibility. Bored, stoked, raise the compression, 114 octane fuel, wicked profile on the cams, overkill on the port work....it'd suck as a street engine, but in my opinion it is very possible.

While you may not think highly of SHM, the dyno sheet says he may know what he's doing. The warranty offerd with his crate engines says he stands behind his product.

 

I can make a stock 4cyl Honda 1.5L make 400hp on a dyno-it's all in how honest the operator is,and if he's manipulated the dyno's operating parameters. I've been around long enough to see dyno sheets from "500 hp" cars that barely run 13's at the track-they got bamboozled by a dyno shop/tuner and think they have a helluva powerful car when in reality-they got took to the cleaners and the dyno sheet is bogus..
Try to claim anything on the "warranty" with SHM-people have tried,and have been told to pound sand. One customer I remember in particular had problems with an engine that supposedly had been dynoed prior to shipping-had dyno sheet and all packed with it.....signed off as tested ,etc,etc. That thing didn't run right upon initial startup-like it had a dead cylinder. After finally yanking the cam covers the shop finds a follower missing.....not just popped off-MISSING. SHM swore it wasn't possible,blah,blah,blah.....and refused to take care of the labor bill for fixing their screw-up. Now-I'll ask you this......How do you suppose that engine ran on the dyno to make that dyno sheet if it only had 31 of the 32 valves actually functioning?
There are hours of horror stories in dealing with those clowns.....all one has to do is look around to find them instead of blindly taking the word of a paid advertiser.
JL

 

Do you think that 500hp motor was using stock heads? There are a few people on the net pushing that kind of power, and it takes quite maxed out parts... If you think SHM did make that power with stock heads and without crazy cams, I got some underdrive pulleys to sell ya, guaranteed for 30hp gains.

Also, wasn't it one of those canned shows where the mechanics don't have a piece of dirt on their hands, like Horsepower TV or something, that proved the power and mpg gains in a tornado last year?

Like JL said 1. SHM probably didn't have that engine making anywhere close to that amount of power. 2. if they did it, it was very close to maxed out; talking 5 angle valve job with oversized valves, ported and polished to hell and back; a $4000 dollar intake, some big cams and every trick in the book... My money is on, they didn't do it...

A dyno isn't the end all be all; track results is where performance can be measured. A dyno is much more suited as a tool to tune a car vs a gauge to measure performance. With the exception of Mihovetz, do a search online for people buying and using SHM stuff... you'll find lots of horror stories.

What's pretty sad, Mihovetz is still using a stock teksid block, and not SHMs uber-blocks... stock crank, not SHM's mega treated kryptonite cranks that they can sell you for the low price of just 2000 dollars or whatever they charge for em nowadays, and a whole bunch of components that shm doesn't make. But they chose the correct off the shelf rods and pistons for him. whupdeedoo?

bah, way to kill my aspirations for more cubes It'd be fun to line em up w/ a GTO, with equal displacements

 

i was wondering if the 5.4 in a f350 is the same as a f250 i bought a 03 f250 with no motor. i always wanted a super duty so i sold my 2001 f150 and then bought the f250. i have a 5.4 out of a f350 and was wondering if their is a diffrence and if it will work without changing brain boxes and was also wondering how much of a lift would i need to fit 40s

 

F250 and F350 motors are the same, but you need to get it from a similar year range to ensure all the sensors and wiring harness are the same or can transfer easily.

 

I get a tad over 17mpg with my 5.4 on the highway, but I cruise between 65 and 70 mph on long, straight, flat roadways in Texas. Pulling a car hauler with a 5k pound vehicle drops me to around 11-12.


I have no problem pulling into traffic with it, but maybe I drive like a senior citizen and haven't realized it yet, who knows.


Its a good, strong, reliable motor. Take care of it and it will take care of you.