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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  #7081  
Old 05-31-2009, 06:44 PM
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The only reason Im not going with the hps intake is because I'm seriously considering doing the tork tech 03 04 cobra blower for the 2 valve my buddy put a whipple on his cobra and is willing to give me his blower for free if I buy the tork tech kit it's 2k but it looks really good hood clearance is an issue but not as much as with the lightning set up oh yeah my flywheel is a spec 11" steel flywheel that I bought off of eBay for 60 bucks
 
  #7082  
Old 05-31-2009, 06:47 PM
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just the 5.4l hb intake made for the swap? no adapters period
 
  #7083  
Old 05-31-2009, 07:30 PM
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i have non pi heads on the 5.4 and 4.6 and a pi intake manifold, but how do i have one without the other? i was doing the pi swap on my mustang, but the mechanic that did it,screwed my motor, the heads i dont know if they're good, the block's internals are seized,the pistons have marks from the valves, so they're probably bent right? thats why i am afraid of doing another pi head swap, so i'll just stick with the pi-npi adapters
 
  #7084  
Old 05-31-2009, 10:03 PM
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Originally Posted by cooper4220
i have non pi heads on the 5.4 and 4.6 and a pi intake manifold, but how do i have one without the other? i was doing the pi swap on my mustang, but the mechanic that did it,screwed my motor, the heads i dont know if they're good, the block's internals are seized,the pistons have marks from the valves, so they're probably bent right? thats why i am afraid of doing another pi head swap, so i'll just stick with the pi-npi adapters
NPI heads out flow PI heads "INTAKE"! Out of the box or max ported, NPI rains. Exhaust........HHHahahahahahahah this is where the NPI head craps. The NPI head is an awsome head with more strong points than a PI head, but the exhaust is just poopy. Even ported heavy with big valves
This is one reason the PI heads are so wonderful, awsome flowing exhaust! The others would be smaller combustion chamber, better valve design out of the box, fast burn swirl(due to small combustion chamber), and a great market.
Npi strong points are Awsome flowing intake, able to use flat top piston = cleaner burns(bigger chamber) and able to use a valve lift nearly .100" over what the PI can use
With a little bit of what the PI heads use and some know how the NPI heads can run too.

Research!!!
 
  #7085  
Old 06-01-2009, 12:48 AM
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Picked up my 5.4 today. Need to put it up on my stand. Quick ? Does anyone know what the size/thread is for the bolts for the engine/bell housing is?
 
  #7086  
Old 06-01-2009, 12:50 AM
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7/16" i think
 
  #7087  
Old 06-01-2009, 01:00 AM
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Originally Posted by myillwillinc
7/16" i think
Thanks, but I'm looking for the major/thread pitch #'s from the head of the bolt. Gonna go to the store in the morning and pick up some bolts and trying not to waste the trip.
 
  #7088  
Old 06-01-2009, 05:49 AM
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Originally Posted by myillwillinc
7/16" i think
Nothing on these Mod Motors are standard thread sizes... they are all metric. The bolts in question are M10x1.25 IIRC
 
  #7089  
Old 06-01-2009, 09:33 AM
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Originally Posted by cooper4220
hey guys, just joined this forum, interested in doing the 5.4 swap in my mustang.I bought a 5.4 Triton engine with less than 2000 miles. my problem right now is the intake, since the heads are NPI,i have several ideas, either the reichard racing or the mmr adapter plates with the hps pi to npi adapters, or is that too many adapters? haha.I could also go with the hps pi to npi adapters with the 5.4 hps hardball'r right?

My other question is, can i bolt the 5.4 to a t56 from an 03 cobra? and can i bolt that up to a 97 mustang gt? thanks for all your help, im kinda lost on which way to go right now. oh, and the t56 is because i dont want to shred my current trans mission
you don't need the adapters. A little RTV will allow you to use the HPS intake as it sits. It's just like putting a PI mustang intake on a NPI car. I would REALLY advise upping to PI heads. You're leaving a lot on the table without them. It's hard to fugg that job up. Sue your mechanic. He put your cams in upside down.

Originally Posted by Silver281GT
The motor i picked up also has the pullies on it still... Do i still need to swap mine 4.6 pullies over or use whats on it???
Either. I used a mix of my 4.6 and 5.4 pullies and then used the 6 rib belt from the mustang.

Originally Posted by Btamayo23
The only reason Im not going with the hps intake is because I'm seriously considering doing the tork tech 03 04 cobra blower for the 2 valve my buddy put a whipple on his cobra and is willing to give me his blower for free if I buy the tork tech kit it's 2k but it looks really good hood clearance is an issue but not as much as with the lightning set up oh yeah my flywheel is a spec 11" steel flywheel that I bought off of eBay for 60 bucks
Realistically, it's going to cost a helluva lot more than 2k to make that blower work even with the TT kit. I'd seriously consider using a centrifugal blower. The cost will be a bit less in the end I bet.

Originally Posted by 97gtstang
just the 5.4l hb intake made for the swap? no adapters period
+1

Originally Posted by 96blackgt54
NPI heads out flow PI heads "INTAKE"! Out of the box or max ported, NPI rains. Exhaust........HHHahahahahahahah this is where the NPI head craps. The NPI head is an awsome head with more strong points than a PI head, but the exhaust is just poopy. Even ported heavy with big valves
This is one reason the PI heads are so wonderful, awsome flowing exhaust! The others would be smaller combustion chamber, better valve design out of the box, fast burn swirl(due to small combustion chamber), and a great market.
Npi strong points are Awsome flowing intake, able to use flat top piston = cleaner burns(bigger chamber) and able to use a valve lift nearly .100" over what the PI can use
With a little bit of what the PI heads use and some know how the NPI heads can run too.

Research!!!
So, port them NPI's or go PI. And if you're porting NPI's then you might as well pay for ported PI cuz they cost the same and make lots more oomph.

Originally Posted by cooper4220
i have non pi heads on the 5.4 and 4.6 and a pi intake manifold, but how do i have one without the other? i was doing the pi swap on my mustang, but the mechanic that did it,screwed my motor, the heads i dont know if they're good, the block's internals are seized,the pistons have marks from the valves, so they're probably bent right? thats why i am afraid of doing another pi head swap, so i'll just stick with the pi-npi adapters
See above. You don't need the adapters. Please for the love of god do the PI heads and sue your mechanic as an incompetent nitwit. He owes you an engine.

Originally Posted by JScottGT
Nothing on these Mod Motors are standard thread sizes... they are all metric. The bolts in question are M10x1.25 IIRC
pretty sure that's the correct pitch.
 
  #7090  
Old 06-01-2009, 09:38 AM
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tested the fuel system yesterday, A1000 is noisy but not as bad as everyone lead me to believe. fuel pumped thru the system just fine. after putting gal in the tank and running it thru to the y block in the front and running a hose back into the empty gas can i'm glad i did so. from cutting and assembling the fuel system i saw a good bit of particles and crap in the gas once it went back into the can. so everybody run thru the system before running it.
 
  #7091  
Old 06-01-2009, 12:59 PM
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Hey r3d why do you say the tt conversion will be so much? I have most of the parts to it (blower tb intake front mount heat exchanger fluid transfer pump coolant reservoir injectors mass air) most of which I got in trade for work I realize I'm gonna have to build the engine but I'd still have to even with a centrifical blower
 
  #7092  
Old 06-01-2009, 02:22 PM
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Either. I used a mix of my 4.6 and 5.4 pullies and then used the 6 rib belt from the mustang.


Is it the same pullie set up and belt route on the 5.4 and 4.6... Sorry for the dumb ?'s
 
  #7093  
Old 06-01-2009, 04:09 PM
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Originally Posted by Silver281GT
Either. I used a mix of my 4.6 and 5.4 pullies and then used the 6 rib belt from the mustang.


Is it the same pullie set up and belt route on the 5.4 and 4.6... Sorry for the dumb ?'s
Pretty much, I used all my 4.6 pullies and the belt. I threw a new tensioner on there too.
 
  #7094  
Old 06-02-2009, 12:00 AM
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Well, I will be having my heads rebuilt, and having the guy look at the block to see if there is any other damage.
 
  #7095  
Old 06-02-2009, 02:08 AM
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Hey ya'll, just wanted to let everyone know I got my repair manual in last night, and have most of the torque specs and clearance allowances available. debating whether to scan and post, or just make a large post. In the meantime, PM me for any info you might need.
 
  #7096  
Old 06-02-2009, 07:33 AM
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Originally Posted by Silver281GT
Is it the same pullie set up and belt route on the 5.4 and 4.6... Sorry for the dumb ?'s
Not really but you'll figure it out. It's only gunna work 1 way. hehe. I'm sure we can get some pics of belt routing up. Check my site... You can proabably see in one of the pics.

Originally Posted by Btamayo23
Hey r3d why do you say the tt conversion will be so much? I have most of the parts to it (blower tb intake front mount heat exchanger fluid transfer pump coolant reservoir injectors mass air) most of which I got in trade for work I realize I'm gonna have to build the engine but I'd still have to even with a centrifical blower
The FMIC requires a true intercooler in the manifold under the blower. the TT intercooler is 850 bucks and includes no plumbing or fittings which add up FAST. So you're up to just a tit under 3 grand and you still have to make sure and get a donated blower, FMIC, TB, tune, injectors, fuel pump, blah. For the cost of all that crap I bet I can find you a complete procharger kit that will make more power, clear the hood and be a little more street friendly.

Originally Posted by wildride02gt
Hey ya'll, just wanted to let everyone know I got my repair manual in last night, and have most of the torque specs and clearance allowances available. debating whether to scan and post, or just make a large post. In the meantime, PM me for any info you might need.
If you want to scan them and send me the jpegs I'll serve them from my website for you guys.
 
  #7097  
Old 06-02-2009, 08:46 AM
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When I spoke to tt on the phone they told me that the intercooler was included I was worried aboout the added cost so I made sure to ask I would have to buy hoses and fiitings though. The blower is a for sure thing all I have to do is pick it up
 
  #7098  
Old 06-02-2009, 09:31 AM
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sound like you got it planned..
 
  #7099  
Old 06-02-2009, 10:13 AM
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Im just trying to as much research as I can so I don't get in over my head
 
  #7100  
Old 06-02-2009, 10:22 AM
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did some playing with desktop dyno. Put head flow data up to a stage 1 head from stock since I'm pretty sure after really inspecting them again that they should flow better than stock at least to that level. I put in data for the blower and found and corrected a mistake I made relating to belt ratio and there's new estimates of output. So with 8lbs it should see 420-435rwhp and 520-530rwtq. So I can use 42lbs injectors! yay.

Anyone got any 42's or need 30s?
 
  #7101  
Old 06-02-2009, 12:40 PM
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Hey Red or anyone else....Any suggestions on cheap rods and pistons? Should be taking the motor to the rebuilder either this weekend or next...
 
  #7102  
Old 06-02-2009, 02:22 PM
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Themustangdepot.com
 
  #7103  
Old 06-02-2009, 02:40 PM
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Originally Posted by JScottGT
Nothing on these Mod Motors are standard thread sizes... they are all metric. The bolts in question are M10x1.25 IIRC
Just in case anyone else has to buy some, they ended up being M10X1.50
 
  #7104  
Old 06-02-2009, 03:09 PM
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so my engine came with cops and i have coil packs. is there some way i can use the cops or do i just have to use my coil packs? anyone have any insight into this?
 
  #7105  
Old 06-02-2009, 04:16 PM
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whatever your engine had to start with is best to stay with IMO
 
  #7106  
Old 06-02-2009, 04:29 PM
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this might be uaeful to some of you guys...

http://www.karkraft.com/new_page_7.htm
 
  #7107  
Old 06-02-2009, 06:34 PM
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Nice find.. Some pretty sweet prices there.
 
  #7108  
Old 06-03-2009, 01:01 AM
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Just got done getting the cams degreed hopefully I can finish pulling the motor out today ( it's about 1 a.m.) and start on getting the 5.4 in
 
  #7109  
Old 06-03-2009, 04:52 AM
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Sweet progress Btamayo23!
Keep us posted
 
  #7110  
Old 06-03-2009, 06:19 AM
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Originally Posted by myillwillinc
this might be uaeful to some of you guys...

http://www.karkraft.com/new_page_7.htm
What a shame, they had some cool parts too. And worse is, I'm no where near MI.
 


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