Modular 4.6L Tech For all your 1996-2005+ 2V, 3V, and 4V modular motor needs.
View Poll Results: What are your 5.4L swap plans?
Not swapping. You guys are nuts for trying.
1.82%
Not swapping but find the topic interesting.
12.73%
Thinking about doing the swap but not in the next year.
16.82%
Definitely going to do the swap in the next year or so.
25.45%
Doing it now. Looking for an engine or awaiting delivery.
15.45%
Doing it now. Already bought an engine.
18.64%
Done. Got my 5.4L and showin my tail lights to camaro's every day.
7.73%
Screw 5.4, I'm going diesel 4cylinder.
1.36%
Voters: 220. You may not vote on this poll

Anyone intrested in 5.4L swaps, in here. Need you to opine.

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Old Oct 17, 2013 | 09:02 AM
  #10741  
myillwillinc's Avatar
Senior Member
Joined: Mar 2005
Posts: 1,233
From: bham, ala
Default

odd your tq was lower then the hp on the stage 2
 
Old Oct 22, 2013 | 08:08 AM
  #10742  
96stang54's Avatar
Junior Member
Joined: Oct 2013
Posts: 2
Default

It is very odd. The supercharger changed the motors personality from torquey to loving the rpms. 177 hp gain for $2500 parts only was a great deal.


More pics to come.
 
Old Oct 23, 2013 | 11:39 PM
  #10743  
HesterAngelo's Avatar
Junior Member
Joined: Oct 2013
Posts: 20
From: Fort Worth
Default

Seriously i am definitely going for a diesel 4 cylinder this year
 
Old Dec 6, 2013 | 10:34 PM
  #10744  
96blackgt54's Avatar
Senior Member
Joined: Aug 2007
Posts: 278
From: Lawrenceburg,KY
Default

Ok...I'm back....lol

So the last time I posted was page 325..lol! Its great to see the thread still moving! Ive been down in life with illness a life crap itself, but I'm ready to pick up my torch and carry on.

So my build consist of flat top 4v pistons, h-beam rods, lightly ported npi heads, comp npi 274cams, hps 5.4l, frpp shorties, 19lbs injectors, 87octane tune

240rwhp 350rwtq without cams
280rwhp 330rwtq with cams

After about 3months driving fun the car developed a mis. I did the normal checks except compression and all was fine, but still missed. Oh well cold weather was setting in so I just parked the car inside to sit untill finances improved. My life had been flipped around cause of an illness causing us to struggle and depression to boot....long story short....I'm back to wrenching.

I figured out why #3 cylinder was missing. After replacing parts, checking wire conections and scratching my head, I should have done a compression check. Turns out the exhaust modmax valve spring broke. Sheewww that's a relief.

So during the down time I had to sell the hps and a bunch of extra parts to help with bills. This kind has put me back to square one. I'm thinking this go around to port the npi heads a little more with a good valve job, up the compression to utilize 93octane and shoot for 300rwhp. Not to sure yet what to do about an intake. I'm brainstorming on a design and hopefully can scrounge it together
 
Old Dec 7, 2013 | 06:55 AM
  #10745  
myillwillinc's Avatar
Senior Member
Joined: Mar 2005
Posts: 1,233
From: bham, ala
Default

get another hps intake.

here is a treaser shot of mine so far:

Name:  download_20131205_200210_zps9b09e151.jpg
Views: 483
Size:  92.0 KB

most likely going to flip the ic to get a better path for the turbos to push the air into the ic....
 
Old Dec 7, 2013 | 10:01 PM
  #10746  
96blackgt54's Avatar
Senior Member
Joined: Aug 2007
Posts: 278
From: Lawrenceburg,KY
Default

Looking good and it appears that you know what your doing
 
Old Dec 9, 2013 | 08:34 PM
  #10747  
WoodrowLarson's Avatar
Junior Member
Joined: Oct 2013
Posts: 10
From: Dallas
Default

I am gonna do it the very next yea. Probably starting off on the new years eve.


TEvida
 

Last edited by WoodrowLarson; Sep 29, 2018 at 01:44 AM.
Old Dec 11, 2013 | 06:40 PM
  #10748  
96blackgt54's Avatar
Senior Member
Joined: Aug 2007
Posts: 278
From: Lawrenceburg,KY
Default

So what you gonna build!
 
Old Jan 16, 2014 | 10:22 PM
  #10749  
ShaunCurry's Avatar
Junior Member
Joined: Nov 2013
Posts: 10
From: Portland
Default

i guess i have to change my mind that what i have voted and what i am seeing are quite different scenarios .. by the way, it is looking solid






Tevida Side Effects
 

Last edited by ShaunCurry; Sep 30, 2018 at 11:38 PM.
Old Apr 2, 2014 | 07:00 PM
  #10750  
whitestang04's Avatar
Senior Member
Joined: Apr 2008
Posts: 1,381
From: Sarasota, FL
Default

It's sad to see the swap thread dying down. This is the lone thread that had traffic
 
Old Apr 14, 2014 | 06:25 PM
  #10751  
gotspeed74's Avatar
Junior Member
Joined: Apr 2014
Posts: 1
From: mississippi
Default

So glad I found this post! I just finshed a 99 v6 to 4.6 and I'm already bored with it So I bought
a 5.4 2v today for 200 bucks! Here goes nothing!!
 
Old Apr 25, 2014 | 09:06 PM
  #10752  
D-Bo's Avatar
Junior Member
Joined: Feb 2014
Posts: 4
Default 5.4 swap

Just picked up a HPS 5.4 intake. I would really like to find some LT headers. The last vendor mentioned in this thread appears to be out of business as well. . . .
 
Old May 2, 2014 | 08:41 PM
  #10753  
cobra54's Avatar
Junior Member
Joined: Feb 2011
Posts: 18
Default

Originally Posted by myillwillinc
i demand a video of this beast gettin it done...



I had a loud lifter that I had to pull the drivers side valve cover and re-bleed all of them since I couldn't isolate it. But the noise is gone now.


On the dyno it layed down 374/345 SAE. I just got some long tubes modified to fit. Now I'm trying to fab up my o/r x pipe. Hopefully have it back on the dyno this month to see the gains.
 
Old May 4, 2014 | 05:12 PM
  #10754  
Mr. Sandman's Avatar
Junior Member
Joined: Feb 2012
Posts: 17
From: Willoughby, Ohio
Angry

hey guys. well I had mine up and running for a bit then it all fell apart I used adapter plates and couldn't get the driver side in the rear to seal up. From the leak it was running lean and I started to get a vibration. Then it happened. The vibrations caused the Loctite on my cam bolt to break loose and it spun out. The gear walked until it sheared off the keyway and the cam stopped in place while the gear kept going. I ended up hitting every exhaust valve on my driver side. Well our clearance issue sucks and I had to pull the engine just to remove the head.
 
Old Aug 11, 2014 | 10:38 AM
  #10755  
cobra54's Avatar
Junior Member
Joined: Feb 2011
Posts: 18
Default

Just an update to my B-headed 5.4 build. After I modifed some long tubes I was finally able to get it on the dyno. I was shocked that I gained so much. The last dyno with the shorty's the motor didn't like any timing but when the LT's went on it wanted more fuel and timing. So here is the sheet that shows the shorty header dyno and now my long tube dyno.

Name:  54LTdyno8914_zps4dc7c289.jpg
Views: 519
Size:  61.9 KB

-Mark
 
Old Aug 11, 2014 | 11:16 AM
  #10756  
myillwillinc's Avatar
Senior Member
Joined: Mar 2005
Posts: 1,233
From: bham, ala
Default

Awesome numbers man.
 
Old Oct 1, 2014 | 11:27 AM
  #10757  
lhill1995's Avatar
Junior Member
Joined: Oct 2014
Posts: 1
Default

Cobra54 Looks like you have good low end torque for a 4-valve car. I was always under the impression that 4-valve cars were nearly dead below 3000 rpms. I actually own a 2003 4x4 superduty with the 5.4 but I have read every thread on every site that I could find over the last year to get info on my build and this is the best thread by far. There is too much false information out there as I for a long time understood the 5.4 had a 9.8:1 compression ratio untill I did the math myself. I want to thank all you mustang and crown Vic guys for paving the way in performance on the 5.4, and this is the build I have planned. I will use a built shortblock with good H-beam rods and JE zero decked pistons with trick flow 44cc heads to shoot for 9.8-10.5:1 compression based on what my builder recommends for a 7000lb truck. HPS intake and some custom cams with 1 5/8" heads probably shorties as that's all that's available and I have no time to make any as it's my work truck. Dual 3" exhaust with hooker max flow mufflers and no cats. 4.56 gears and 35" mud grips. Hopefully I will have close to 330hp at the tires. I will be happy with that.
 
Old Oct 1, 2014 | 12:11 PM
  #10758  
myillwillinc's Avatar
Senior Member
Joined: Mar 2005
Posts: 1,233
From: bham, ala
Default

here is what the long tube turbo headers look like:

Name:  IMG_20140925_185048_zpsb8f6c7e0.jpg
Views: 463
Size:  91.1 KB
 
Old Oct 5, 2014 | 10:58 PM
  #10759  
D-Bo's Avatar
Junior Member
Joined: Feb 2014
Posts: 4
Default

Just posted an HPS 5.4 in the classifieds if anyone's in need.
 
Old Oct 22, 2014 | 12:53 PM
  #10760  
JMPodo511's Avatar
Junior Member
Joined: Oct 2014
Posts: 2
Default

Not sure if this tread is still current or not but I too own a 5.4 swapped GT w a P-1sc1. I have a red 2000 mustang gt with a 5 speed and a 2003 5.4 2v from a e350. Motor has 50k miles on it. I bought the car with the swap, supercharger, BBK shortys, bassani mufflers, suspension and wheels added already. It has the HPS knuckleball'r intake, procharger air to air intercooler and MAFia setup. It also had 42lb injectors and a procharger CIA. Since I bought the car I've been going thru tying up lose ends and trying to get documents what's been done. I added the bbk 78mm throttle body and plenum, 60lb injectors, BBK off road x pipe, , kenne bell BAP, tensioner, iidler pulley, racing seats, gates green belt, plugs and a 2.80 supercharger pulley good for 12.5lbs of boost. Since it has flat top Pistons this as much boost as I could safely push. It was good for 390/420.. I'm rrady for the next step but unsure of my direction and open to advice. I was thinking of going with the modmaxracing rotating assembly that comes with the forged crank, dished Pistons, rods, rings and bearings. I also want to add stage 3 heads and cams, upgraded fuel system. I'll have to upgrade to a D1sc procharger also.. Has anybody done this extensive of a 5.4 2v swap mod? Is all of this feasible or am I going outta my way for no reason? I'd like to get to 600hp range. If doing all this on a 50k mile, 2v, 5.4l doesn't make sense other options I was looking at include the MMR 5.4 short block (which is essentially everything I wanan do just with a new block), or a MMR 5.0 stroker motor. I'd like to just keep my engine and add all the above mods.. Any thoughts? Suggestions? Thanks in advance
 
Old May 11, 2015 | 03:40 PM
  #10761  
jbrucksch03's Avatar
Junior Member
Joined: May 2015
Posts: 2
Default

I am def looking into the 5.4 swap in the mist of looking for a donner motor nowhoping to find one that I don't need to do any rebuild.i know I gotta get an intake and fix the exhaust prob but is there anything else? was really hoping just a set of cams would give me the pwr band at a lil higher rpms and be done with some forced induction?
 
Old Feb 17, 2016 | 11:27 PM
  #10762  
Bowser330GT's Avatar
Junior Member
Joined: Feb 2016
Posts: 2
From: Denver, CO
Default

Hey all! I'm brand new on this forum. Tearing down my 5.4 2v and planning on a mild set up of shorties, cams, hps intake and a wider plenum and stuffing it in my 98 GT. Thank you guys for getting this info out there! I'm looking forward to destroying ricer pukes! >
 
Old Feb 28, 2016 | 07:18 AM
  #10763  
Wolgy's Avatar
Junior Member
Joined: Feb 2016
Posts: 1
Default

Hey guys Just found a fully built 5.4 motor and want to swap it into my 2000 GT. Having trouble finding an intake for that bad boy, any advice? Also any thoughts on putting ford lighting supercharger on it? I feel like it would stick up WAY to high. Thanks!
 

Last edited by Wolgy; Feb 28, 2016 at 07:20 AM.
Old Jan 10, 2017 | 05:49 PM
  #10764  
zigbigadoru's Avatar
Member
Joined: Aug 2008
Posts: 50
Default

Hey all,

Just wanted to inform you I will be building a mockup and eventually a set of long tube headers for the 5.4 in a mustang. I will try to keep you updated with progress pics as it comes along. Oh and after my set is done I would be more than willing to let you guys have access to my mockup in order to get your own set of long tube headers as well. Cheers!
 
Old Jan 11, 2017 | 12:17 PM
  #10765  
myillwillinc's Avatar
Senior Member
Joined: Mar 2005
Posts: 1,233
From: bham, ala
Default

i still have a few sets of flanges fromt he shop here that was going to build some. let me know if u need some.

Also, if anybody has a hardballr intake to ell let me know.
 
Old Jan 11, 2017 | 02:04 PM
  #10766  
zigbigadoru's Avatar
Member
Joined: Aug 2008
Posts: 50
Default

I won'won't say too much about what I've done to this 5.4 but I expect it with be pretty healthy
 
Attached Thumbnails Anyone intrested in 5.4L swaps, in here. Need you to opine.-20161113_173304.jpg  
Old Feb 26, 2017 | 07:41 AM
  #10767  
Gofaster's Avatar
Junior Member
Joined: Feb 2017
Posts: 1
Default Gof

Originally Posted by whitethunder46
Existing longtubes wouldn't fit with a 5.4 swap?
​i have a 02 GT I have replaced the 4.6 with 5.4 2v the problem I am having is finding exhaust headers that will fit I had bbk long tube on the 4.6 they will not work so I bought a set of bbk Shorty's and they won't work hat can I do ?I need help
 
Old Mar 6, 2017 | 12:23 AM
  #10768  
myillwillinc's Avatar
Senior Member
Joined: Mar 2005
Posts: 1,233
From: bham, ala
Default

does anyone know id r3dn3ck(colin) is still around?
 
Old Feb 7, 2025 | 02:56 PM
  #10769  
20mustanggt00's Avatar
Junior Member
Joined: Feb 2025
Posts: 1
Default So is there a list of stuff you need to do the swap or what?

So is there a list of stuff you'll need on this thread or you just taking a poll to help a company decide wether or not they can make a product for everyone and make money?
 
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