03/04 Cobra motor into 04 GT

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Silvr04GT

Founding Member

Feb 4, 2002

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San Jose, CA

Sep 8, 2009

#1

• Sep 8, 2009

• #1

Hey guys, I've done some searching on the forums and it seems that swapping a supercharged 03/04 Cobra motor into an 04 GT should be do-able. Thoughts?

 

twogts4us

15 Year Member

Apr 1, 2004

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Dunedin, FL

Sep 8, 2009

#2

• Sep 8, 2009

• #2

I'd think this would be pretty much straight up, as long as you have the computer to go with the motor. Are you getting the T56 with it as well? (You'd better!) Driveshaft fitment may be an issue...

 

trombonedemon

Well-Known Member

Jun 25, 2009

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U.S.A, U.S.A., U.S.A.!

Sep 8, 2009

#3

• Sep 8, 2009

• #3

Yea I heard the cobras and gt driveshafts are slightly different, why, I couldn't tell you, but probaly thats why its a cobra.

 

twogts4us

15 Year Member

Apr 1, 2004

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79

Dunedin, FL

Sep 9, 2009

#4

• Sep 9, 2009

• #4

I'd imagine that if you get the T56 and the DS you won't have an issue, but I'd bet that the distance from the tail of the T-45 or TR-3650 differs to the pumpkin differs from the distance with the T56. I don't believe it will matter if you use your stock solid axle or switch over to the IRS.

 

wmburns

SN Certified Technician

Aug 14, 2009

5,892

514

204

Houston Texas

Sep 9, 2009

#5

• Sep 9, 2009

• #5

Reminder to get the PATS system from the donor car. Otherwise, it will not start. Then you will need to disable PATS with a tuner.

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

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Sep 9, 2009

#6

• Sep 9, 2009

• #6

**** people do it all the time. You will need a really big shoehorn. Seriously though its been done many times.

 

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Silvr04GT

Founding Member

Feb 4, 2002

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San Jose, CA

Sep 9, 2009

#7

• Sep 9, 2009

• #7

Good info! Thanks guys! One other question, in the FRPP catalogue Ford has some nice 4.6L motors that look cool would something like work or would I need too many little extras to make it work?

 

SVT32VDOHC

waiting for the next hack atta

Founding Member

Nov 22, 2001

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119

Motor City

Sep 10, 2009

#8

• Sep 10, 2009

• #8

Get a donor car as you will need the Cobra's key, column, speedo, ECM. I would put all the Cobra wiring in, dash, underhood, fuse box everything. Don't peice this together. It will nickle and dime you and take lightyears to complete.

 

seths99cobra

Member

Aug 31, 2009

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afghanistan

Sep 10, 2009

#9

• Sep 10, 2009

• #9

if your gettin the t56 with the motor just have your driveshaft shortened. t45 is shorter than a t56. i know cuz i did a t56 swap when i blew the t45 to pieces. your speed sensors for both trannys are the same piece you wont need a different one your speedometer will be off a mile or two. but yeah doin the motor swap should go pretty easy get the computer and all of that and do it right man piecing it together will bite you in the butt later.

 

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Silvr04GT

Founding Member

Feb 4, 2002

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San Jose, CA

Sep 11, 2009

#10

• Sep 11, 2009

• #10

Any thoughts on good places to track down these motors and trannys?

Edit: Seems like $10,500 for the motor and tranny is actually not bad seeing as the motor used to sell for $10,500 from Ford Racing. Thoughts?

 

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mat82284

Member

Jul 31, 2003

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Sep 11, 2009

#11

• Sep 11, 2009

• #11

Silvr04GT said:

Any thoughts on good places to track down these motors and trannys?

Edit: Seems like $10,500 for the motor and tranny is actually not bad seeing as the motor used to sell for $10,500 from Ford Racing. Thoughts?

Click to expand...

Sell your GT and buy a cobra. You can sell your car for 8-15k depending on year and mileage and pay 20k or less on a nice 2003 Cobra.

 

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Silvr04GT

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Feb 4, 2002

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Sep 11, 2009

#12

• Sep 11, 2009

• #12

mat82284 said:

Sell your GT and buy a cobra. You can sell your car for 8-15k depending on year and mileage and pay 20k or less on a nice 2003 Cobra.

Click to expand...

I definitely thought about it, but I've had my GT since day 1 and it never even saw the dealer lot. I've put too much time and effort into it to part with it!

 

seths99cobra

Member

Aug 31, 2009

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afghanistan

Sep 11, 2009

#13

• Sep 11, 2009

• #13

that would be the way to go find a used one ebay craigslist. i couldnt see myelf sellin mine just to get another 90hp plus another car note.. man i would keep what you got and do a swap and you know how your car was kept up and all that. but thats my opinion

 

68stang351

Founding Member

May 16, 2002

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Savoy TX

Sep 13, 2009

#14

• Sep 13, 2009

• #14

If you do it you should make a progress thread. I would like to follow along on that one.

 

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8.8mustang

Member

Aug 20, 2006

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6

washington

Nov 26, 2010

#15

• Nov 26, 2010

• #15

I did the swap. If you need help pm me, I'll talk with you on the phone.
The swap is worth it I ran 12.40's at more than 120mph one street tires and as quick as 12.1 spinning

 

trinity_gt

10 Year Member

Jan 31, 2003

3,125

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99

Canada

Nov 26, 2010

#16

• Nov 26, 2010

• #16

Forget the 4V: Build a stout 2V and slap a big fat KB blower on it.

Probably be cheaper...