so i need my head repaired, cyl 1 has low compression from damaged valve. my mechanic said the motor needs to come out for the head to be removed.
i think now would be a good time to upgrade the 4.6 turd. im looking to swap in a reman motor from ebay 5.4 99-03 longblock w/ 1 year warranty-
http://cgi.ebay.com/ebaymotors/ws/eB...tchlink:top:en

i am planning to use my 4.6 romeo intake manifold with pp 4.6 to 5.4 adapter plates-
http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWAX:IT

1.)i am wondering if i can use my 4.6 manifolds or would it be easier to buy some shorty 5.4. i see listings for 97-01 then 02-07. arnt they all the same???-
http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWAX:IT

http://cgi.ebay.com/ebaymotors/ws/eB...=STRK:MEWAX:IT

i assume all belts and accs will bolt right on, the belt diagram is same for 4.6/5.4

i might need diff cam cover

oil pan will bolt on

motor mounts are the same

tranny will bolt on

i know i should use a 5.4 TC but probally end up using the 4.6 TC, unless someone has one laying around for a fair price.....

2.)is there anything im missing or could potentally be a problem????

...i hate being the first guene pig on this one, but it would put on a big grin on my face to have the first NBS 5.4 2v

 

use the 4.6 converter if you can (higher stall and output for more power to the ground)



you will need the cam/valve covers and you will need the 5.4 timing cover (with the windsor bolts) and your 4.6 exhaust manifolds will bolt right up and you'll need new mid pipes so might as well go for 2.5 inch duals with the cross over of your choice

 

Finally, someone is attempting this. Keep us posted and add pics when it's finally in motion.

 

Ordered 2003 5.4 windsor reman long block. It comes with valve/cam covers. i inquired if they could send me a 8 bolt flexplate and timing chain cover.

They should give me full core fund back for the 4.6. The reman engine has unlimited miles warrany for one year.

going to autozone and picking up
spark plugs sp-479
serpentine belt
water pump, although the same mine has 85k
maybe o2 sensors, at least the front one???

Question- Will the 8 bolt windsor flexplate bolt to my Romeo Torque Converter?

i quess im scrapping the shorties headers because of possible fitment issues and lack of performance gains; although they would look sweet. I think that would fit better then 4.6, but idk.

considering an dual 14'' electric fan kit

ill keep updating as process continues

 

I wouldn't run adaptor plates for the intake manifold. Too many horror stories from them. Just get an intake manifold from a 99-03 5.4L

 

what are you doing about the intake manifold situation???




the shorty headers will bolt onto the 5.4 and you're gonna need either a new mid pipe or modify your current one


the torque converter "should" interchange

 

what horror stories?

Ordered the 5.4 adapter plates. reman motor doesnt come with intake manifold, so i dont have to buy a manifold and less quess work - throttle, cruise control, sensors, drive by wire...

considering the headers. they said its for 4x4 but not lifted?
a new y pipe should bolt right up, didnt think of that

guess im gonna try to use the old TC, and see how long the tranny last

need to get timing cover and flexplate still

 

Research the horror stories man there is a big reason why I stuck a stock 5.4 intake manifold on my car and not a 4.6 manifold with adaptor plates.

https://www.f150online.com/forums/v8...t-lincoln.html

 

looking at 02 f150 5.4 and my 04 4.6 side by side and there looks to be considerable differences with the intake manifold. this is the first swap(known of) in a new body style truck so no one knows all the differences. the 5.4 manifold looks to be added work with no to little added benift. the mustang guys use the adapter plates with great success - other then added height which can be a problem and the truck like power curve.

Can any one confirm that a 03 flexplate from a 5.4 fit my romeo 4.6 TC??????
im hoping so...

i put an offer on the chrome headers...
my mid pipe needs mod either way

considering Underdrive pullies
http://cgi.ebay.com/ebaymotors/96-04...item5ad619b346
Can anyone talk me out of this

Also dual 14 electric fan kit sounds like a good idea

looking to get a tune from PSI mororsports in PA when all is said and done
-they did my 88 blown fox 340/360 to wheels

 

should not be an issue with the torque converter as long as they are both 8 bolt cranks...

 

Im curious to know how your transaction goes with this engine company. If all is well, then I will probably purchase an engine from them also. I just dropped a new tranny in so I figure might as well put another engine too while I have the $$. Anywho, post up pics when you can.. looking foreward to seeing the progress.

 

So your reman came from 123 correct ?

 

yeah ordered from 123engine. ive read mixed things about them. they install engines. looks pretty legit. motor has not arrived. shipping from ca to nj.

have read that the adapter plates dont allow fuel to the back of the valve, requiring added fuel. essentially it has a longer intake runner which i believe is better for making torque. Running rich is it all that bad.

my understanding is that windsors are a 8 bolt crank/11 valve cover and romeo are 6 bolt crank/9 bolt valve cover. Are the TCs swapable?????

im questioning if my timing chain will be long enough for the 5.4
any incite????????

 

Guys with the mustangs are getting terrible fuel mileage with the adaptor plates and leaving a lot of power on the table because of it as well, ~30rwhp.

Run rich for too you MAY foul plugs, o2 sensors, and/or plug up the cats. You look at my thread with my lincoln look at that intake manifold and then the stock truck one. It would be easy to pick up some small things like the EGR tube and stuff to make it look like factory on your truck.

No your timing set will not work on the 5.4.

as for the converter once the motor is out take windsor/8 bolt ring gear before you put it on the motor and try to put it over the studs on the converter that is on the truck.

If you are dead set on the adaptor plates go ahead I'm not trying to make you buy them. I research a lot of things to death that have been done before and also not afraid to try the new things as well but its your truck, your time, and your money you build it the way you want.

 

thanks for the replies, i appreciate the input

sounds like i need a 8 bolt TC, the romeo is 6...

i assume Gotts2beme help start the gotts mod-very impressive!!!

maybe the mustang guys werent expecting to burn more gas with a stroker motor????

i think the 30hp your referring to is from the use of a HPS intake manifold for the 5.4. i dont think swapping from 4.6 manifold with the adapter plates to a truck 5.4 manifold is going to net too much hp. although ive been known to be wrong. the 5.4 has 25 more hp then the 4.6 (235-260). so that assumes that i wont get any hp out of the swap-which is a possiblity.

i would also like to note that the 03 5.4 motor is $2oo cheaper than a 04 4.6 from 123motors

either was its too late, adapters already arrived. hell for another 800 i could have got supercharger off a lighting.
http://cgi.ebay.com/ebaymotors/LIGHT...Q5fAccessories

got the stainless steel headers coming, 180 shipped sounded to good of a deal to pass up.

with the e fans, red aluminum UD pullies and headers its going to look trick. cant wait
im not to worried about the alternator strain because i dont have any power options, only run a 150watt sub, 35w HIDs, planning on a optima battery and getting 4.56 gears

theres some good points about running too rich. i always assumed its better to run to rich then to lean.
im worried about my cats and o2 because ive been running on 7 cylinders with the check engine light on and can smell unburnt gas