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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

4.6l v8 in 88 foxbody?

  • Thread starter Thread starter loudstang
  • Start date Start date Jul 26, 2011
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SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
28
119
Motor City
Jul 27, 2011
#21
  • Jul 27, 2011
  • #21
I should correct myself...they don't live with KB's and big boost because of the heat that a KB generates. That's what I should have said first. Vortec's don't generate the same heat as KB's with the same boost.
 

Mr. Rustypwnz

Advanced Member
Jun 1, 2005
1,761
63
69
indianapolis/ valdosta ga
Jul 27, 2011
#22
  • Jul 27, 2011
  • #22
Mustang5L5 said:
I actually want to see a VQ37HR swap in a Fox
Click to expand...

shut your face!
 

1991notchbackLX

Active Member
Dec 25, 2007
1,483
47
48
New York
Jul 27, 2011
#23
  • Jul 27, 2011
  • #23
Can I swap a v8 into my 4 cylinder?
 

tannerc91gt

This last 25% is foreign territory at this point
Founding Member
Nov 29, 1999
4,392
2,967
234
Indiana
Jul 27, 2011
#24
  • Jul 27, 2011
  • #24
You have to cut the engine bay out and use the front 40% of a v8 car so there's more room. Also make sure to use a WC T5 which was made from 1936-2012 and the gauge cluster from an 88 LX. Any more questions, feel free to PM
 

old_blue

15 Year Member
Nov 3, 2003
1,783
282
124
Jul 27, 2011
#25
  • Jul 27, 2011
  • #25
you'll have to forgive peeps on here but I think they answered you question. there is also a thread on the top that is current and older projects people on here have been working on/completed (if that is even possible with a fox). Check that out and you will learn a lot. good luck
 

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
1,634
695
204
Cheesehead
Jul 27, 2011
#26
  • Jul 27, 2011
  • #26
1991notchbackLX said:
Can I swap a v8 into my 4 cylinder?
Click to expand...



NO!
 

ID89GT

10 Year Member
May 26, 2008
1,659
18
49
Spokane Valley, WA
Jul 28, 2011
#27
  • Jul 28, 2011
  • #27
Can I swap a 4 cylinder into my V8?
 

N8Dogg98

15 Year Member
Apr 4, 2005
3,872
238
184
MN
Jul 28, 2011
#28
  • Jul 28, 2011
  • #28
can I add a 4 cylinder to my V-8 mustang? I want me some fuel economy...
 
S

screamin5oh

Member
Jul 13, 2011
170
5
19
centerville oh
Jul 28, 2011
#29
  • Jul 28, 2011
  • #29
stay away from 96/98 2v motors, and if your going to do the swap i would stay away from all 2v motors, if you want to tackle something like this then find a 4v motor or a coyote motor, the only mod motor i would ever think about doing a swap is a terminator motor. thats the only one worth doing, the coyote are too expensive yet. but thats my opinion and opinions are like *******s everyone has them
 

SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
28
119
Motor City
Jul 28, 2011
#30
  • Jul 28, 2011
  • #30
screamin5oh said:
stay away from 96/98 2v motors, and if your going to do the swap i would stay away from all 2v motors, if you want to tackle something like this then find a 4v motor or a coyote motor, the only mod motor i would ever think about doing a swap is a terminator motor. thats the only one worth doing, the coyote are too expensive yet. but thats my opinion and opinions are like *******s everyone has them
Click to expand...

I've done both 2v and 4v swaps. Both cars had CAI, K&N, off-road mid-pipe and catback. Other than that....stock!

2v was a 2001 GT. Made 241RWHP & 284RWTQ.

4v was a 1997 Cobra. Made. 276RWHP. TQ was unavailable that day, dyno was having trouble picking up the TQ reading, couldn't get a singal from the coil.

Most 5.0L cars make 189-210rwhp with the same mods.

It's a lot of work to install a mod motor into a fox the way I did it. For some, the time, labor, effort, research it takes....it might not be worth it. They make more power than 5.0L's stock for stock, or even both having exhaust. However, some people would rather just swap HCI, or do a blower and make as much or more power than an N/A mod motor.

I guess it all comes down to personal preference and the "cool" factor. For me it was the cool factor. My car would have a crowd around it at the track, and car shows because it's a fox with a mod motor. Wasn't fast, but it grabbed more attention than a 5.0 fox running the same 1/4 mile times at the track. It also grabbed more attention at car shows, even tho other foxes might have had just as nice of paint/wheels ect... The mod motor really shocked people. I used to get people on the side of the road ask me is that a 4.6???? I'd ask, yeah, how'd you know??? They said....you can hear it, you ran them gears out much too long for that to be a 5.0!!! So.....to me, that was worth it.
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,029
1,621
194
NJ
Jul 28, 2011
#31
  • Jul 28, 2011
  • #31
screamin5oh said:
stay away from 96/98 2v motors, and if your going to do the swap i would stay away from all 2v motors, if you want to tackle something like this then find a 4v motor or a coyote motor, the only mod motor i would ever think about doing a swap is a terminator motor. thats the only one worth doing, the coyote are too expensive yet. but thats my opinion and opinions are like *******s everyone has them
Click to expand...

This is kinda how i see it too.
Hence that is what i did.
I wasn't so much in it for the cool factor, i just wanted around 500hp without having to worry about crap breaking all the time or blowing head gaskets.

The rest of the modular engines just cost too much to build up and modify.
 

SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
28
119
Motor City
Jul 28, 2011
#32
  • Jul 28, 2011
  • #32
2000xp8 said:
This is kinda how i see it too.
Hence that is what i did.
I wasn't so much in it for the cool factor, i just wanted around 500hp without having to worry about crap breaking all the time or blowing head gaskets.

The rest of the modular engines just cost too much to build up and modify.
Click to expand...

x2. Oh yeah, I left out the part in my reply to his that a Terminator swap is the ultimate mod fox...hands down. But, the most is going to double over what I did. A Coyote would be triple and there would be a lot more research that would need to be done to get that in and running.

I've heard Terminators motors into fox body gives your trouble running a sway bar because the alternator gets in the way. That sucks. I drove my 4v car without an alternator for the first few months and when I put it on, it was a night and day difference. You need a sway bar to handle and manuever on the freeway.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,260
17,944
224
Massachusetts
Jul 28, 2011
#33
  • Jul 28, 2011
  • #33
A PI-swapped 96-98 2V might be a cheap alternative though. Pick up a motor dirt cheap, along with some 99-04 2V heads, intake cams, swap on a aftermarket plenum and TB with some long tube headers and you could have a 300HP motor for well under what you pick up a 96-98 4V for

You could also use a 93-98 Mark 8 4V, although you might need to change out a few more parts.

Hell, swap in an LSx while you are at it. Nobody is gonna know.
 

SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
28
119
Motor City
Jul 28, 2011
#34
  • Jul 28, 2011
  • #34
Mustang5L5 said:
A PI-swapped 96-98 2V might be a cheap alternative though. Pick up a motor dirt cheap, along with some 99-04 2V heads, intake cams, swap on a aftermarket plenum and TB with some long tube headers and you could have a 300HP motor for well under what you pick up a 96-98 4V for

You could also use a 93-98 Mark 8 4V, although you might need to change out a few more parts.

Hell, swap in an LSx while you are at it. Nobody is gonna know.
Click to expand...

True. For me, it's tough to find the heads and other parts, even working at a junkyard. Lots of people don't wanna give up their cores when it comes to Mustangs, so we charge them a core, then they keep their engine. For me it's best to get a 99+ 2V, but yeah 96-98's with PI parts will lay down 300. Project Red Headed Step Child did that a few years ago.

93-98 Marks would work, but the early years had that goofy throttle body that sits straight up, so an intake/throttle body and cable change is necessary. The last year 97-98's had a more similar intake to a 96-01 4V, so you might be able to fab something cheap and make it work without a true Cobra intake. Who knows for sure tho....
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,029
1,621
194
NJ
Jul 28, 2011
#35
  • Jul 28, 2011
  • #35
SVT32VDOHC said:
x2. Oh yeah, I left out the part in my reply to his that a Terminator swap is the ultimate mod fox...hands down. But, the most is going to double over what I did. A Coyote would be triple and there would be a lot more research that would need to be done to get that in and running.

I've heard Terminators motors into fox body gives your trouble running a sway bar because the alternator gets in the way. That sucks. I drove my 4v car without an alternator for the first few months and when I put it on, it was a night and day difference. You need a sway bar to handle and manuever on the freeway.
Click to expand...

You can run a sway bar, but it's a little extra work.
Couple ways to do it, use an sn95 bar which mounts under the frame, not inside.
Or leave the one good sway bar mount (only one needs to be cut off), make a spacer to lower that side and have a chassis shop fabricate the other other.
Basically the fox bar just needs to be mounted lower to clear the alternator.

The sn95 works, but people complain about wide wheels hitting it before full turn.

As far as getting a non PI and making one, i don't see the point.
2v's of any type are cheap.
Combine the cost of the PI heads and intake, with head bolts and gaskets, and i can't see it being worth the effort when starting from scratch.
 

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Jul 28, 2011
#36
  • Jul 28, 2011
  • #36
Yea, I just can't see the benefit of any N/A 4.6 swap into a Fox. More complex, less displacement, and dollar for dollar a HCI pushrod is cheaper and easier and is probably going to outrun a 4.6 with the same kind of money invested. It really just boils down to the uniqueness factor.

Now, a Termi motor is a whole new ballgame.
 
S

screamin5oh

Member
Jul 13, 2011
170
5
19
centerville oh
Jul 28, 2011
#37
  • Jul 28, 2011
  • #37
SVT32VDOHC said:
I've done both 2v and 4v swaps. Both cars had CAI, K&N, off-road mid-pipe and catback. Other than that....stock!

2v was a 2001 GT. Made 241RWHP & 284RWTQ.

4v was a 1997 Cobra. Made. 276RWHP. TQ was unavailable that day, dyno was having trouble picking up the TQ reading, couldn't get a singal from the coil.

Most 5.0L cars make 189-210rwhp with the same mods.

It's a lot of work to install a mod motor into a fox the way I did it. For some, the time, labor, effort, research it takes....it might not be worth it. They make more power than 5.0L's stock for stock, or even both having exhaust. However, some people would rather just swap HCI, or do a blower and make as much or more power than an N/A mod motor.

I guess it all comes down to personal preference and the "cool" factor. For me it was the cool factor. My car would have a crowd around it at the track, and car shows because it's a fox with a mod motor. Wasn't fast, but it grabbed more attention than a 5.0 fox running the same 1/4 mile times at the track. It also grabbed more attention at car shows, even tho other foxes might have had just as nice of paint/wheels ect... The mod motor really shocked people. I used to get people on the side of the road ask me is that a 4.6???? I'd ask, yeah, how'd you know??? They said....you can hear it, you ran them gears out much too long for that to be a 5.0!!! So.....to me, that was worth it.
Click to expand...


stick 1500 into a 4.6 2v or early 4v and stick 1500 into a 5.0/5.8 roller cam motor , see what runs better, and also you forgot to mention the torque numbers, i stick by what i said, 2v 4.6 is diff in a fox but useless. 4v motors are a much better way of doing it, i have had both worlds and speak from experience
 

CarMichael Angelo

my rearend will smell so minty fresh,
15 Year Member
Nov 29, 1999
10,641
8,909
234
Birmingham, al
Jul 28, 2011
#38
  • Jul 28, 2011
  • #38
So then is the 4v engine wider than the 2v engine, or do they move the heads in and make the distance between the intake ports narrower?
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,260
17,944
224
Massachusetts
Jul 28, 2011
#39
  • Jul 28, 2011
  • #39
2v heads are smaller...but not by much.
 

1989GtFoxBody

Member
Dec 31, 2010
96
2
18
Cali, USA
Jul 29, 2011
#40
  • Jul 29, 2011
  • #40
tannerc91gt said:
You have to cut the engine bay out and use the front 40% of a v8 car so there's more room. Also make sure to use a WC T5 which was made from 1936-2012 and the gauge cluster from an 88 LX. Any more questions, feel free to PM
Click to expand...

You sir.... Are my idol.
 
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