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  1. #1
    FEP Super Member NAVYCAT's Avatar
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    Default motor swap questions

    Has anybody done the 4.6 swap into a 86, is it hard to do and is it worth the effort. any web sites out there to get some info?
    2017 Mustang ECO BOOST (DD) 1986 Capri 5.0 Silver/Red
    1969 Falcon XW GTHO coupe (SOLD) went to australia
    Past 4 eyes-
    4th. 1981 Capri "White" Black Magic I6
    3rd. 1984 Capri RS V8 Black/grey
    2nd. 1984 Capri RS V8 White/red
    1st. 1984 SVO Grey/grey (traded it for a worn out 1970 BOSS 302)
    Both '84 Capri's vin# were 10 away from each other
    U.S. NAVY 1980-2009

  2. #2

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    I wouldn't bother for a single overhead cam motor. 3v or 4v sure if the price is right. I haven't done it but looked into it. A factory SN-95 K-member and mounts, and it should bolt in. Using factory fox control arms will help limit how much wider the front track width will grow. You might have to ask around to find out which headers fit best.

    Jess
    Previously owned;
    1979 Mustang, v6 swapped to EFI 393, custom installed m122 blower, 4r70w trans, Megasquirt II, T-top swaped in.
    1990 Mustang, 545 BBF, C-4 with brake, ladder bars.
    1983 Mustang, 1984 SVO Mustang
    1984 Mustang convertible, v6 swapped to 351
    1986 Mustang GT, 1989 Mustang GT convertible
    1992 Mustang coupe, 4 swapped to 302

  3. #3

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    Even the 99 PI motor’s were way down on torque vs the 5.0. You could grab a 1999-2004 and make it more or less a bolt in on some fronts, but it’s cheaper to add heads and intake to a SBF.

    Depends upon what you want.

    Even with 3.73:1 rear gears in the 99GT my cousin bought new my 86GT at 250K miles would flat out blow the doors off of the car. No contest at all. Well beyond gapped him in a 1/4 mile. Left him basically sitting there top end.

    The 4.6 has potential. Look at the terminators. But they require a serious effort and $$$$

    to each their own.

  4. #4
    Moderator wraithracing's Avatar
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    Default

    I think it depends on what you want to do with the car overall.

    I am not a fan of the basic 4.6. Too small and not enough power. Now if you are talking the Terminator 4.6 DOHC Supercharged then I am IN! The Mach 1 4.6 DOHC and the 96-98, 99-01 Cobras are 300 HP and fun engines, but honestly you can make that much power easily with a good SBF.

    There are parts and pieces out there to make the swap easier. The Terminator engine is much more expensive option, but if you have nothing right now IIRC, then the costs might not be that bad comparatively If you shop around the Terminator motors have come down a bit in price thanks to the Coyote 5.0 Which is another great option and much better than any standard 4.6 if you consider the swap.

    If you are doing a budget build, then honestly a SBF will be cheaper and much easier. The 4.6/5.0 will require either a Hydroboost or manual brake setup, unique headers or stock manifolds, K member swap or modifications, Mod transmission, unique H/X pipe, wiring and computer parts, and many other misc parts. I am doing the 5.4 DOHC swap in my 82 GT which is even more of a headache due to the taller deck height of the 5.4 so I can tell you about some of the issues. I have my engine fitted to the chassis, but I still need to finish everything else. Good Luck!
    ​Trey

    "I Don't build it hoping for your approval! I built it because it meets mine!"

    "I've spent most of my money on Mustangs, racing, and women... the rest I just wasted."

    Mustangs Past: Too many to remember!
    Current Mustangs:
    1969 Mach 1
    1979 Pace Car now 5.0/5 speed
    1982 GT Ongoing RestoModification
    1984 SVO Awaiting Restoration
    1986 GT Wrecked by PO, but still want to save!

    Current Capris:
    1981 Capri Roller
    1981 Capri Black Magic Roller Basket Case
    1982 Capri RS 5.0/4spd T-top Full Restoration Underway
    1984 Capri RS T-top Roller
    1983-84 Gloy Racing Trans Am/IMSA Body Parts

  5. #5
    FEP Super Member NAVYCAT's Avatar
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    Default

    thanks to all, just thinking about a modern engine that are cheap cant afford the coyote.....I have a set of AFR heads sitting in a box and with other go fast parts should be good. just worried that california will get even more stupid with the smog, they just announced that they will ban all aftermarket turbo chargers sold starting in 2019
    2017 Mustang ECO BOOST (DD) 1986 Capri 5.0 Silver/Red
    1969 Falcon XW GTHO coupe (SOLD) went to australia
    Past 4 eyes-
    4th. 1981 Capri "White" Black Magic I6
    3rd. 1984 Capri RS V8 Black/grey
    2nd. 1984 Capri RS V8 White/red
    1st. 1984 SVO Grey/grey (traded it for a worn out 1970 BOSS 302)
    Both '84 Capri's vin# were 10 away from each other
    U.S. NAVY 1980-2009

  6. #6

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    CA ban on turbos — That’s just stupid!

    If I had one and lived there I’d move. Well, to be fair I had my 86 when I lived out there and I did move.... guess I’m biased.

  7. #7
    FEP Power Member gmatt's Avatar
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    Quote Originally Posted by NAVYCAT View Post
    they just announced that they will ban all aftermarket turbo chargers sold starting in 2019
    You sure about that?

  8. #8

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    I would only consider a 3v. Because of the Coyote, they almost give 3V away. That being said, for all the parts and pieces needed on top of the engine/tranny, you could build a 347 or even a 393/408 engine and have money left over.

    I keep wanting to do something different, but I already have most parts for a 351 swap and it just gets expensive adding up swap headers, bellhousing, etc.
    1985 GT, Sunroof, 5 Lug, Rear Discs, 01 Graphite Bullets, 88 forged piston shortblock, 2.02/1.60 Alum heads, Weiand Stealth, Holley C950 TBI, BBK Long tubes

  9. #9
    FEP Super Member NAVYCAT's Avatar
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    Default

    Yes I am sure, just read about it
    2017 Mustang ECO BOOST (DD) 1986 Capri 5.0 Silver/Red
    1969 Falcon XW GTHO coupe (SOLD) went to australia
    Past 4 eyes-
    4th. 1981 Capri "White" Black Magic I6
    3rd. 1984 Capri RS V8 Black/grey
    2nd. 1984 Capri RS V8 White/red
    1st. 1984 SVO Grey/grey (traded it for a worn out 1970 BOSS 302)
    Both '84 Capri's vin# were 10 away from each other
    U.S. NAVY 1980-2009

  10. #10

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    Quote Originally Posted by erratic50 View Post
    CA ban on turbos — That’s just stupid!

    If I had one and lived there I’d move. Well, to be fair I had my 86 when I lived out there and I did move.... guess I’m biased.
    Posted on April 1st..
    Not real...

  11. #11

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    I’d move - for good measure.

  12. #12
    FEP Super Member xctasy's Avatar
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    Trans plant a 2000 Police interceptor Windsor 4.6 from an SN99, and talk to

    Coast High Performance
    Torrance, CA 90505
    310-784-1010
    www.coasthigh.com



    http://www.coasthigh.com/Ford-5-1L-M...ts-s/13032.htm
    about a 30 thou over block (3.582" bore) with 3-3/4 inch stroker crank.

    It comes with 6 " rods, 4954 cc's and 302 cubes, and you use a 2000 CA market Mustang for its emission complaince, and swap all the bits over.


    OBDII it at the same time. That means fuel flap, Smart Lock removal, PATS code and transfer over the speedo and shifter. Over 400 street legal horspower hiding under the plastic cam covers if you get some proper rods and the right head work done.


    Right away, a little 281 cube Noughtie PI is many hundreds of pounds lighter, and the engine is such a honey, the pizza base is sound.

    See http://www.mustangandfords.com/how-t...r-motor-build/



    Don't do it all at once, do a 2000 4.6 PI engine swap, don't be scared, and if you like it half as much as I think you will, then get a stroker fired up for it when dollars allow.

    Quad cammers and 3V's are nice as well, but a stroker 4.6 puts a heck of a lot more low end torque on the table at significantly less cost, and gets you into the easier OBDII era, with a nice range or parts and a huge amount of grunt.


    Cli won't bit you if you use the stock dual exhasust and with a Five speed and 3.73 or 3.27's, it'll be epic.
    Last edited by xctasy; 06-25-2018 at 11:43 PM. Reason: PATS not PUCS.... DOUGH!

  13. #13
    FEP Power Member gmatt's Avatar
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    Default

    Quote Originally Posted by Frankensteinlx View Post
    Posted on April 1st..
    Not real...
    Jokers......

    http://www.enginelabs.com/news/calif...turbochargers/

  14. #14
    FEP Super Member NAVYCAT's Avatar
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    Default

    Quote Originally Posted by gmatt View Post
    told you it was real story
    2017 Mustang ECO BOOST (DD) 1986 Capri 5.0 Silver/Red
    1969 Falcon XW GTHO coupe (SOLD) went to australia
    Past 4 eyes-
    4th. 1981 Capri "White" Black Magic I6
    3rd. 1984 Capri RS V8 Black/grey
    2nd. 1984 Capri RS V8 White/red
    1st. 1984 SVO Grey/grey (traded it for a worn out 1970 BOSS 302)
    Both '84 Capri's vin# were 10 away from each other
    U.S. NAVY 1980-2009

  15. #15
    FEP Super Member xctasy's Avatar
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    Default

    No one has said no to Supercharging, especially since Ford has said yes to it so often in the 4.6 and 5.4 and 5.0.


    For others considering this, the SOHC 2V 4.6 is a brilliant engine with a 3.75 stroker crank and 3.582 overbore. 4954 cc...it's Ment to Be.

    Kenne Bells newer 2.1, 2.6 and this 2.8's pump in a huge amount of boost, and the 4.6's are so abundant.



    http://kennebell.net/2v-or-not-2v-richard-holdener/

  16. #16

    Default

    There definitely is nothing wrong with the 2V 4.6...other than the basic rotating assembly blows at about 450 but, that's true of the 3V too. The heads on a 2v require very little work to be really effective and make alot of power. You can make big power easier on a 2V than on a 3V, oddly enough.

    Much as I hate the 4.6 and wasn't ever going to own a Mustang as long as they kept with that, there is a reality to be faced here.

    the swap is easy, as there are **** loads of 2V Mustang donor cars out there. They are still Fox bodies, like it or not.

  17. #17

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    Iíve also considered the swap, but not for a performance minded car. My goal was a smooth and good sounding cruiser, the 2v 4.6 is so smooth and reliable.


    Sent from my iPhone using Tapatalk

  18. #18

    Default

    For all the pain and trouble you are going through to swap in a 4.6L, I would just do a coyote swap instead.

  19. #19

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    Have some fun stories about CHP ..... I’d steer clear.

  20. #20

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    ...........
    Last edited by massacre; 10-17-2020 at 06:28 PM.
    79 Zephyr, 4v/4r70w swap planned, with team z front and rear suspension, 8.8 and upgraded brakes and coil overs.

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