if u want, bore and stroke a 4.6 to a 5.1 and then s/c it. you'll be rewarded with some nice numbers i'm sure. but if u put a mild 5.4 in a stang and tehn s/c it, you'll have neck snapping torque and bigger hp numbers.

 

It's not that you can't do it, it's that it's a pain in the *** and there are no intakes for it. The 300bhp and 365tq is there in a PI intake equipped 5.4 if not that at least very close. No matter what, you always pay for power. If you want a 5.4 you can whip on then you have to get one that's well built. That costs a few grand but you're rewarded with power potential that's not as easy to get with the 4.6. if you stuff 12psi in a stock block 4.6 you'll end up with a smoked motor. A built 4.6 costs about 500 bucks less than a built 5.4, so no matter what you do, if you're planning what you say you are and big power and daily driving are your thing then you need to look at a built motor. I wouldn't stuff any more than 8psi in a stock 4.6 2v. Less in a 3 or 4v.

the 5.4 2v came in f series trucks, e series vans, expeditions, 98 navigators, and similar size vehicles

 

Ok since i threw a rod in the 01 GT, I am going try this swap. I found a 2004 Expedition with 36000 miles on the it. I have an automatic. What do I need else do I need besides the adapter plates and some exhaust work.....

 

that's exactly why i'm going to do this setup....I was so ready to have my 4.6 built up and then put a KB ontop but then I saw this and said that if i want that nice street torque and high HP then why not go a big block setup...and this is what's here for us looking for that...so I say 5.4 all the way and... to really kick it in to gear...thanks for taking the time to read this....

 

jnobles... you'll need a 8 bolt flexplate like from a automatic mach1. I'd suggest some cobra brakes too cuz you're going to be about 100lbs heavier in front.

 

so replace the intake with my intake and replace the flexplate and everything else plugs right in??....need to get a tune too??? Apologize now for the newbish questions

 

there is nothing wrong with questions. i enjoy all the attention the 5.4 swap gets...

 

MMR 5.4 Race Mod 1100 (up to 1100HP)

*Cast Iron 5.4 Block

*New 4340 Forged 4.165 Crankshaft, includes additional heat treat w/micro polished journals at no extra charge

*New 4340 6.658 Manley Pro-series Rods ( These US made rods are shotpeened, magnafluxed and weight matched to bring you the finest I-beam rod available for your 5.4

*New Forged Manley pistons 3.552 Bore size (High or low compression)

*Speed Pro file fit rings (precision file fit to your application, nitrous, blower, turbo or N/A)

*Federal Mogul Competition series heat treated Rod and Main bearings

*ARP main stud kit for maintaining correct cap location under the hardest of loads

*Complete Pro Assembly and Balancing for the smoothest, highest revving shortblock available.



*Due to the custom nature of MMR shortblocks ALL customers paying with a credit card
will be billed when the order is placed (prior to engine assembly and shipping),
All MMR shortblocks are non-refundable regardless if the item has shipped or not.
501100 $4499

I saw this at that MMR you advised what do you think of this setup...do you think it's worth it I do...then all i have to do is pick a good set of Cams and get my heads cleaned up and I'm good to go N/A then grab my SC later.....thanks for taking the time to read this....

 

i bet that sucker will rev to 9k

 

yup, it should be a mad one...i definately want to run it NA for a while and see what it puts out..especially if it's made to handle that..i'm gonna see what i can get...i just have to figure out what cams to get for it and i'll be good to go and if all goes well while i'm out to sea then come thanksgiving i'll be rip roaring the streets in CA....hopefully i can stop by and see r3d some time while i'm up that way....thanks for taking the time to read this....

 

well anyone in or near alabama look me up. i'd love to see other 5.4 projects. i think there are 2 other guys around here doing the 5.4 2v swap.

 

that's all the motor you'll ever need. Order it up... hell you could drop your car off there and they can do it while you're at sea.

 

As i said, a Vortech SQ 2 V series will put me around 440hp and 430lb-ft in my 4.6L 2V. for 4500 bucks. how much would it take to get a 5.4L 2V motor to be in the same range and have it reliable enough to drive every day infront of a tk3650 tranny?

 

is 1750 too much for a complete 2004 expedition engine with 36,000 miles on it....

 

alright more questions...what would be an estimate on have a shop do the swap or should i just try to do it myself.

 

Not really a valid question... hang with me I'll explain.

trying to get 440 out of an un-built 4.6 is asking to break it into bite size pieces. You have to run a lot of boost to get there and the stock 4.6 2v will not last long at those levels.. if it even makes it through the dyno tuning. So, add $3K for a forged motor that will last while running enough boost to see 440rwhp. For 7.5K you can have quite a bit of power out of any ol' engine.

a 3650 will last no longer behind a blown 4.6 than it will a NA or blown 5.4. If you're asking this question then you plan on flogging it well, so all bets are off. You can frag a tko600 with a stock 4.6 if you try hard enough so saying it'll last x amount of time is kinda pointless.

Every pound of boost you give a 4.6 returns a smaller amount of hp than the same pound of boost in a 5.4 and only a fraction of the tq. If bigger inches aren't your basic desire, then you're a 4.6 guy and that's cool. All of us that are doing this know that bigger inches = bigger power potential and we're doing what we can individually to maximize the returns we get from other upgrades, like blowers and nitrous and turbos.

 

figure on a grand. if it's less... then that's cool. You can do the basic swap yourself but I'd have a shop do it.

nope that's a decent price for a good condition runner... BTW that's a 3v motor. 03 and earlier are 2v.

 

ahh...well good thing i didn't pull the trigger on that engine yet, thanks

 

that would be a good idea but i think i'm going to wait until i get back from sea then have it done...i might do some of the work myself to help cut back on the cost...but other then that if all goes well i should be done come thanksgiving time...but i'm not sure if i'm going to take leave then or if i should just hold of till Christmas time to come home...but I should be done come November 07...the price might even go lower around then as well...thanks for taking the time to read this...

 

well, i'm waiting on my k-member to come in. i got these this week:
90mm maf
new headlights

 

Hey,
I'm still trying to decide on the type of SC to get..i know that a KB builds off idle..and the T-trim (not sure if CA legal) builds off high rpm and all....but i'm wondering is it really necessary to get the KB if i have a well built 5.4 then the TQ is already there and I can get away with a T-trim (if legal) for the street correct...thanks for taking the time to read this...

 

get the T trim. It'll be easier to fit under the hood and the Vortech kits are normally CARB legal.

 

Ok i must read this whole thing once a week and change my mind on what I want to do everyday so I am just going to start with a budget and then hopefully that will make my decisions a little easier. So what would you (the experts on this subject) do with a 4,000 dollar budget (this is what the wife is allowing me)

 

Does anyone have this swap done and with pics on a 99-04 stang? I'd be really interested in seeing it!!

 

http://wcfords.com/ubb/showthread.php?s=&threadid=26834

^^ that guy is a local out here in California. Car makes 340/340 at the wheels on 9.7:1.

Mine is so close to being done I can taste it. Looks like probably may before the motor actually goes in though.

 

4K to do the whole thing? At that budget you're probably at a stock 5.4 2v and maybe a HPS intake and a set of lumpy cams. If you can squeeze another 2 grand you've got ported heads. (estimate includes all the little costs but you should have a 10% buffer just in case) Such a combo would be pretty stout on power but you'll have to treat it like a stock block, so I would not advise nitrous or any other power adder.

Whether or not you can do more than just a stock 5.4 and the minimal stuff it takes to bolt it up and get it tuned, you've still got a superior foundation for future tinkerings. If you decide later you can put more money into it then have the bottom end built, or add ported heads and all the stuff you'd normally do to a 4.6 and largely in the same order. The thing I'd do first is cams, then heads and intake.

 

are the 5.4 intakes out yet or not

 

bummer, the link doesn't work. and they won't let me signup....


WHERES THE LOVE??????

 

Hey guys, i was linked here from corral.net and man i have to say, this is the most beastly thread to try to read, i've been reading for 3 days and i'm still only on page 24. anyway, i was interested in doing the swap and everyone on corral was talking junk about me for wanting to do it but someone pointed me here. Man, i love the idea of putting this motor in my car. I was half way done with the 98 4v swap, just needed a long block......needless to say i'm selling it to do the 5.4 2v swap. SOOOOOOO NIIIICCCCEEEE Anyway, just a couple questions. I'm sorry but i can't invest any more time lurking and looking through another 1000 post.

1st) Is there any problem with the alt bracket not hooking up right?
2nd) Do you need to put 24 lbs injectors for the engine to run right or will 19's be good?
3rd) Has any of the intakes come out yet?
4th) Is anyone makeing the adapters besides RR and if so could you point me in that way.
5th) Do you have to bend any lines or anything to get the front drives to work? like the power stearing pump?
6th) Someone told me that i wouldn't be able to have power stearing and brakes because the thing was too wide and it wouldn't work with the booster? is that right?
7th) Would a vortec s trim for a mustang bolt up with no problems?
8th) What is the stock compression on these motors?

Thanks , thats all i can think of for now. I'm really into this swap b/c it seems to easy to be true and i need need need the torque with my heavy vert. I want to be able to look at z28's and go

 

no problem...it's gotten pretty long.

You use the stock intake or a stock replacement intake so the alt bracket works fine as far as I know.
you should probably run 24's for a totally stock 5.4 2v and 30 or higher if your power levels start climbing. I've had several builders tell me to just start at 30's and go from there. I plan on doing at least that.
the adapter plates are the best current option other than hacked on lightning lowers. I'm using a HPS intake that I've ported the snot out of with a set of port matched plates.
Noone else has a set of plates out yet but they will soon.
No line bending should be needed. A little fiddling with the heater lines on the rear passenger side of the motor from what I hear but nothing metal.
#6 is total bullshit. Tell them they're ignorant and to get better info or stfu. It's a tight fit but it does in fact fit.
there will be some bracketing details with a blower. Vortech should be able to be very helpful with this.
Stock it's 9.4:1 static.

A stock 5.4 mustang with a good tune is a serious threat to camaros. It'll at least surprise the hell out of them.

You were prepared to go 4v and I'd say if you're still down for that then a 4v 5.4 would have a lot more potential. It'll still fit but exhaust will be more fun and intakes are readily available if a little pricey (sullivan).

Here's proof it works... his was already working but he had a rod bust and did a fully built 5.4 to replace it. http://www.illwillinc.com/97mustang.htm