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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  #1951  
Old 06-14-2007, 01:15 PM
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i'm hoping a t-trim is enough of a distraction. or a d-1sc. don't know which i rather.
 
  #1952  
Old 06-14-2007, 01:47 PM
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Yes, the old dual coils w/ plug wires will work. I would assume the 3V needs a straight boot so use 4V wires.
 
  #1953  
Old 06-14-2007, 02:02 PM
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hmnmnm
 
  #1954  
Old 06-14-2007, 03:47 PM
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i have a question to the ones with stock or near stock 5.4l engines that have the cars out on the road.

how does it drive? if you can, compare it to other cars. stock f-bodies. of other mustangs.

anything other than the numbers, the real world stuff. ya know
 
  #1955  
Old 06-14-2007, 03:57 PM
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saleen s330 and myillwillinc have both reported extremely satisfying results on stock motors. 5.0 & SF was pretty impressed themselves when they did it.

12.7 seconds in the 1/4 on motor is pretty cool...
 
  #1956  
Old 06-14-2007, 04:13 PM
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12.7 is very nice number. was that on a ported heads and cam car, or no?
 
  #1957  
Old 06-14-2007, 05:11 PM
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yea was that a stock motor or whAt?
 
  #1958  
Old 06-14-2007, 06:20 PM
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i think they added mild cams and cai
 
  #1959  
Old 06-14-2007, 08:45 PM
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i think i've been through the thread front and back.

not many pictures and vids of 5.4l mustangs...

no one? there is just that one blue roush as far as i can see. and myillwillinc's homepage.
 
  #1960  
Old 06-15-2007, 08:27 AM
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Originally Posted by tooslow
12.7 is very nice number. was that on a ported heads and cam car, or no?
that was a bone stock engine with just a PI intake and a decent tune. a few bolt-on's don't really count for much until you put in a better set of cams. Ported heads seem to be worth about 20hp over a bone stock motor but add lumpy cams and things get interesting fast.

Originally Posted by tooslow
i think i've been through the thread front and back.

not many pictures and vids of 5.4l mustangs...

no one? there is just that one blue roush as far as i can see. and myillwillinc's homepage.
most pics don't stay up forever. I move mine around now and then to break the links and keep people from bogarting my bandwidth. I host a lot of my own images so it's important for me.
 
  #1961  
Old 06-15-2007, 09:02 AM
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Originally Posted by r3dn3ck
that was a bone stock engine with just a PI intake and a decent tune. a few bolt-on's don't really count for much until you put in a better set of cams. Ported heads seem to be worth about 20hp over a bone stock motor but add lumpy cams and things get interesting fast.



most pics don't stay up forever. I move mine around now and then to break the links and keep people from bogarting my bandwidth. I host a lot of my own images so it's important for me.
can you shoot me a PM with the url to some pics?

i'll rehost them on my photobucket so i can view them whenever without killing your bandwitdth
 
  #1962  
Old 06-15-2007, 09:07 AM
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Originally Posted by tooslow
can you shoot me a PM with the url to some pics?

i'll rehost them on my photobucket so i can view them whenever without killing your bandwitdth
i talked to someone who works at a local machine shop

he couldn't give me a price for the block cleaning and prep yet, he'd find out today at work.

.02 overbore- $125
rehone- $40

no price yet for putting together the longblock, he'll get back to me.

does that sound like the usual prices for that? i know he has built a lot of lightning engines for people, and has a good rep.
 
  #1963  
Old 06-15-2007, 09:08 AM
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Originally Posted by tooslow
i talked to someone who works at a local machine shop

he couldn't give me a price for the block cleaning and prep yet, he'd find out today at work.

.02 overbore- $125
rehone- $40

no price yet for putting together the longblock, he'll get back to me.

does that sound like the usual prices for that? i know he has built a lot of lightning engines for people, and has a good rep.
also, all what work do you guys suggest someone do to the block.
 
  #1964  
Old 06-15-2007, 09:47 AM
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prices are good. I'd do at least a .010 over, if not .020, torque plate hone, check the mains and line hone if you need to. Polish the crank and that's about it for machining.

http://s56.photobucket.com/albums/g1...odora/proprod/
 
  #1965  
Old 06-15-2007, 11:11 AM
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private album
 
  #1966  
Old 06-15-2007, 12:02 PM
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Ahhhh i'm so torn, i want the 5.4L and the 4.6 4v AHHHHHH i don't know what to do. I want the torque and the high reving HP. But i don't want the 5.4 4v don't know what to do.........
 
  #1967  
Old 06-15-2007, 08:20 PM
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high revving engines don't interest me much.

i love 4v cobra's, i want a 96-98 4v. but i still love the low rpm torque idea.

i want the gt to be a fun daily driver with tons of torque. just to cruze around in and enjoy the torque. high revving engines are sweet, but i don't want something like 4.30 gears and 7k rpm just to be into the powerband. high revving engines have more wear and tear and work much harder than they should have too.
 
  #1968  
Old 06-15-2007, 10:04 PM
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true but i don't know. My car is modeled after a cobra and i've always dreamed about a 4v being in there. Might make a high CR motor or something or build it to have a K/B on it since they are only like 3k for them
 
  #1969  
Old 06-16-2007, 08:02 AM
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a proper KB huffer will be closer to 5K all in minus the tuning.

In any case, the 5.4 is a street car motor more than the 4.6 4v is (it's a great race engine). It's being used by others among us to make up for the lack of HP and to keep the revs down. Why bother with a super high revving engine when proper gearing (3.27 or 3.55) and a 2v 5.4 will get you more performance you can feel?

Here's a comparo: My friend "caveman" drives a FAST twin turbo RX7. It's so much faster than my car with a 4.6L that it's not even funny. He thinks my car is faster than his (we've never raced but we've driven each others' cars a lot) because he can feel the push in his back when he hits the go pedal on mine. When his car is whipped it just goes really fast but you don't feel it trying to liquify your spine. That's the difference between hp and tq. He's got more hp than I do by a ways but I've got 5 times the tq so he thinks mine is faster.

5.4 vs. 4.6 4v is the same exact thing as that. 5.4 2v will shove you in the back until you can't take the pressure. 4.6 4v will make you go just as fast but you won't feel it quite the same. The 5.4 will be just as fast as a 4.6 4v but it'll feel a lot more powerful than any 4.6 ever will.
 
  #1970  
Old 06-16-2007, 10:26 AM
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so the 4v with a 4.10 or 4.30 gear wont feel torquey?
 
  #1971  
Old 06-16-2007, 01:42 PM
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quite the contrary but the 5.4 is a purpose built torque monster. It's the best possible application of the 5.4. The thing just cries for flow in any form to reach it's full potential.

Consider this... a former friend has a 00' R. I've driven it many times. It's got a crapload of tq right off idle. As you approach 7000rpm you think the whole world is going to 'splode. Car is making 440rwhp 330rwtq at that speed. It makes more tq than that at 1800rpm and has 3.73's. It was exciting at any speed in just about any gear.

I'm saying that a 4v 4.6 can only do so much. A 2v 5.4 can match or at least approach closely the numbers a 4v 4.6 can (minus blower/turbo/nitrous) with an appropriate selection of parts and good detail work. A 4v 5.4 is a thing of beauty to drive. It's got loads of grrrr just off idle and maintains that saucy attitude all the way to redline if the intake is suited well.

I have driven more than my share of blown cobras with 3.73-4.30 gears and I never found them as torquey feeling from idle to 3500rpm as a similarly setup 2v. It's certainly not to say that as the rpms increase the 4v's don't more than make up for the lack of neck breaking instant power with real serious downrange velocity and tall redlines. I prefer the feel of a 2v.
 
  #1972  
Old 06-16-2007, 02:04 PM
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well i got it to idle now. still dies after idling for a couple minutes. but i have everything hooked up but the clutch cable and a temp sensor...
check the 2nd pic at the bottom to hear ir from inside the car...
http://www.illwillinc.com/97mustang.htm
 
  #1973  
Old 06-16-2007, 07:41 PM
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ok I have read almost every post in this thread. Here is my dilemma. I have a 97 gt 4.6 that the motor went in it. So I talked to a friend of mine who is a mustang guy about getting a new motor and he told me I could do a new 4.6 or a 5.4 so I found a 5.4 for $1300 and had it shipped and everything. Well it is a 3v and he is saying it is going to be to hard to get it into my car. So I started looking for another 5.4 2v and found one. well the guy when he was going to remove it from the truck he broke off one of the mounting holes for the tranny to bolt up to. so now that motor is not going to work for me. So whats the word on doing a 3v. I am willing to buy a new hood. any info would be awesome. R3d I know you are full of this knowledge. Anyone HELP :shakeno
 
  #1974  
Old 06-16-2007, 07:52 PM
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that sounds nice. hope you get it running right. i wanna hear that thing up in the rpms.
 
  #1975  
Old 06-16-2007, 11:50 PM
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Shady

As for the 3v into your car - physically its a direct boltin. Wiring wise, nothing changes. Read the past few pages here we just discussed the 3v ****.

You could always take the heads off the 5.4 3v and put your heads from your 97 on, although they are NPI heads and restricted on power - it would get your car up and running. Your compression may drop a bit.

Something to keep in mind, if your putting a 5.4 3v block in your car, and your car is a 2v car now. 3v's have knock sensors, you dont. Be sure to address that, I'm assuming you can just unplug them and be fine since your ECU doesnt expect to see them. I have no clue how they work... r3d - your assistance please ?
 
  #1976  
Old 06-17-2007, 08:31 AM
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they're basically little pickups listening for the tell-tale sound of detonation. There's one in the valley of the block that I know of.

The broken tranny hole shouldn't be an issue... there's 5 more. Have someone weld on the broken tab and quit whining.

The 2v 5.4 will be really easy to get in the car, the 3v a little harder.

First you need to decide on a direction. Once you have really decided, stay firm. It's going to cost a pretty penny and you seem to have accepted that and made good choices so far.

The 3v block will have to have custom motor mounts made to be mounted in the 97 stang. Not a big deal. If you can weld, it's stupid easy. Dont' worry about the wiring. It's not that big a deal as you're running an engine that's very similar to the one that came in the car. All the ECU needs to know is that it's a v8 and plugs in to the harness.

I would, take the 2v 5.4 block, hook up the 3v 5.4 heads and front cover, replace head bolts with ARP studs, replace main bolts with ARP studs, freshen the rings and bearings and find me a lumpy 3v cam set. For intake adapter plates, it's going to be a custom job but I have a 2v adapter plate you can put a deposit on and use to figure out the geometry for a 3v plate (that offer goes to anyone else that's going to make plates). A good machinist should be able to whittle you out a set of plates. Otherwise I think you may be able to make the 3v truck intake work with only minor custom work.

You will need a throttle body adapter and throttle body and a bunch of little details but it's totally doable.

First thing first... relax, take a step back and assess what you have and where you need to go to be where you want. We'll get there one step at a time.
 
  #1977  
Old 06-17-2007, 08:48 AM
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ok boys and girls...

It's official. I spoke with Bob @ HPS and he's having an initial run of 10 sets of plates cut out right now. Please call up bob and place your order. Make sure to tell him you were sent by me. There's an intake package he's making that will really turn up the power potential of the motor with proper cam selection.

Myillwill... dude... you gotta get a set of these... they're so much shorter than your first gen set and I know you'll make more power with them. Hit me up... may be I'll "loan" you my prototype set.
 
  #1978  
Old 06-17-2007, 11:25 AM
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Wouldnt the 5.4 Truck intake be more hassle and a downfall for the engine ?

Its got the long runners, and a small top mounted throttle body in the center of the intake, + the cable lenghts might change.

Although its a torquey son of a bitch, I have an 07 F150 5.4 3V 4 Door and the slightest blip of the throttle and its moving, thats a **** load of weight to get from 0-60 too.
 
  #1979  
Old 06-17-2007, 04:55 PM
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yea he said that in case you didn't want to get the 3v plates worked and a 3v mustang intake. You could just do the truck intake till then.

On another note. I'm thinking of putting the 4v into the car and then building me a 5.4 shorty and then swap the heads over, what could i do for the 5.4 b head intake??? does anyone make one??
 
  #1980  
Old 06-17-2007, 07:00 PM
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Get 4v Navi heads and the sullivan intake. That's what i think i'm going to do.
 


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