4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

97 cobra motor in 00 GT body.

Old 10-23-2009, 01:38 PM
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Jsmith309
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Default 97 cobra motor in 00 GT body.

What will i need for this? I have a T-45 trans. My old 2v still in the car running and a complete 1997 cobra motor sitting on a pallet in my garage... what will be needed to swap that 4V in my 2000 Gt?
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Old 10-23-2009, 01:48 PM
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Sxynerd
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You know there's almost 60 less Hp from the 97.
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Old 10-23-2009, 02:24 PM
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My sohc 4.6 is rated at 260hp stock. Ther dohc 4.6L i want to put in is rated at 305hp stock. Im swapping in the cobra motor. my sohc motor has a rod knocking.
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Old 10-23-2009, 02:27 PM
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JC316
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Originally Posted by sxynerd
You know there's almost 60 less Hp from the 97.
Eh, he said cobra..... 305HP Cobra vs 260HP GT + 45HP to the cobra. I think that you were thinking of a 97 2V.

OP, I am essentially doing this swap with a Mark VIII engine. So you can go here and get alot of questions answered: https://mustangforums.com/forum/4-6-...gine-swap.html

Now, the cobra is slightly different. It has the 8 bolt crankshaft, but I can't remember if the 00 stang has the 8 bolt or the 6 bolt. If it does have the 6 bolt, then you will need an 8 bolt flywheel. Fuel lines need to be extended, the wiring harness needs to be legthened, the IMRC's will have to be wired to some kind of switch, etc. Read the thread above.
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Old 10-23-2009, 02:33 PM
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Thanks a bunch! i got 2 flywheels with the engine and what about the coil packs?
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Old 10-23-2009, 02:34 PM
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Originally Posted by JC316
Eh, he said cobra..... 305HP Cobra vs 260HP GT + 45HP to the cobra. I think that you were thinking of a 97 2V.

OP, I am essentially doing this swap with a Mark VIII engine. So you can go here and get alot of questions answered: https://mustangforums.com/forum/4-6-...gine-swap.html

Now, the cobra is slightly different. It has the 8 bolt crankshaft, but I can't remember if the 00 stang has the 8 bolt or the 6 bolt. If it does have the 6 bolt, then you will need an 8 bolt flywheel. Fuel lines need to be extended, the wiring harness needs to be legthened, the IMRC's will have to be wired to some kind of switch, etc. Read the thread above.
6 bolt. IMRC's?
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Old 10-23-2009, 02:45 PM
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Pics of the swap progress!!
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Old 10-23-2009, 02:47 PM
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The motor is still in but i WILL post pics!
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Old 10-23-2009, 02:55 PM
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Of pulling and installing.
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Old 10-23-2009, 03:13 PM
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Originally Posted by Jsmith309
6 bolt. IMRC's?
The cobra uses 8 bolts to bolt the flywheel to the crankshaft. Some GT's use 6 bolts and some GT's use 8 bolts like the cobra does. IMRC's are Intake Manifold Runner Controls. They open up a second set of air intake ports above 3250RPM to increase power.
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