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Step by Step guide to installing a Mark VIII motor in a 96+ GT.

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Old 04-02-2014, 08:27 AM   #121
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you're also going to need to find the correct valve covers. the 97-98 mark's had COP's, so if you get those you will need to change your ignition to COP's instead of coil packs. Otherwise you can find any 96-98 or 93-96 4v valve covers and re-use your coil packs.
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Old 04-08-2014, 06:13 PM   #122
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The engine that I bought had been opened: the guy took out the valve covers and the upper intake. With the intense rainy season the engine got flooded, with about 3 gal of water on the pan, and about 1/2 gal in the intake.
I took it apart and cleaned it up. Amazingly enough the engine seem to still be in good shape, and after a good clean it spins freely.
I found a considerable amount of carbon deposits in the intake, mostly I the non-injected ports, and a couple of square ports with deposits.
How concern should I be in regards to the state of the engine?
I am in a tight budget and am trying to avoid taking the heads off, but want to make things the right way.
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Old 07-22-2014, 03:25 PM   #123
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I'm doing this on a 99 GT. I got the 96-98 cobra intake manifold, so should I still be using a 99-01 cobra intake tube or should I use the 96-98 intake? I think the only way that a cobra strut tower brace will fit is if I get the 96-98 one.
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Old 07-23-2014, 03:38 PM   #124
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I'm doing this on a 99 GT. I got the 96-98 cobra intake manifold, so should I still be using a 99-01 cobra intake tube or should I use the 96-98 intake? I think the only way that a cobra strut tower brace will fit is if I get the 96-98 one.
you'll need the 96-98 cobra intake tube.
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Old 07-28-2014, 01:50 AM   #125
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so im starting this swap this week. I have a 93 engine. can someone tell me what parts I will have to get, besides what I have on the Lincoln and my 97 gt.
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Old 07-28-2014, 07:46 PM   #126
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I'm doing this on my 99 GT, which has a returnless fuel system. anything special have to be done, or do i just have to use the mark-viii fuel lines and that's it?
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Old 07-28-2014, 09:37 PM   #127
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can I use the 93 intake in this swap on my 97 or do I need the 96-98 intake? and why do you need cobra manifolds for the swap? why cant you use the ones already on there
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Old 08-01-2014, 11:11 AM   #128
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the parts you need all depend on the route you want to go.

the 93 mark viii intake WILL NOT WORK.

Go back through the posts here, theres not a lot of them. From post #100 on up, you should be able to anwer your questions on the intake part of it.
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Old 08-05-2014, 11:54 PM   #129
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I am on a very tight schedule as im leaving for college in 2 weeks. I am using a 96-98 intake and a 99-04 cobra manifold. will I absolutely need 96-98 cobra imrc plates and a different throttle cable. and if so, what year.
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Old 08-06-2014, 09:30 AM   #130
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I am on a very tight schedule as im leaving for college in 2 weeks. I am using a 96-98 intake and a 99-04 cobra manifold. will I absolutely need 96-98 cobra imrc plates and a different throttle cable. and if so, what year.
reading takes all of 30 min. lol

as for the imrc's, you will need either the 96-98 cobra plates, or the 97-98 mark viii plates. because you are using a 96 cobra intake, you will need to use a 96-98 cobra throttle cable.
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Old 08-06-2014, 09:31 AM   #131
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if you plan on keeping cruise, you will also need the 96-98 cobra cruise cable; or relocate the battery, and then relocate the cruise control module to where the battery one was, and your GT cable will work, but you'll need to splice in a bunch of extra wire so the connector reaches.
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Old 08-06-2014, 09:38 PM   #132
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sorry im just a little confused lol. but im using a 96-98 mark viii intake. not a cobra. so what throttle cables will work with it? can I just use my gt cable. and do I HAVE to have the imrc plates. or can I run it without it. sorry for all the questions.
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Old 08-07-2014, 08:09 AM   #133
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sorry im just a little confused lol. but im using a 96-98 mark viii intake. not a cobra. so what throttle cables will work with it? can I just use my gt cable. and do I HAVE to have the imrc plates. or can I run it without it. sorry for all the questions.
you mean a 97-98 mark viii intake. the 96 still has the TB in the rear. You will need to run a 99/01 throttle cable then.

and YES YOU NEED IMRC plates. if you're running the controller with them, you will need to wire them up. Or do what everyone else does and remove the butterflies within them and run it like that.
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Old 08-07-2014, 11:53 PM   #134
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whats the difference in the throttle cables? why do you need a 99-01?
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Old 08-08-2014, 12:43 AM   #135
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and would an 03 cobra throttle cable work?
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Old 08-08-2014, 09:06 AM   #136
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the distance from the firewall is the biggest hurdle, but then the length of cable from the bracket to the throttle body is different too. the 99/01 cable is needed because the 97-98 mark viii intake is in the identical spot as the 99/01 cobra. That is the one that will work with it. The 03 cable will NOT work, because of where everything is located.
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Old 08-09-2014, 10:06 AM   #137
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Just wanted to drop in and say, when I did my swap I used the 97/98 mark viii throttle cable with matching intake and throttle body without a problem, and have been running that way for close to 2 years now.
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Old 08-11-2014, 04:27 PM   #138
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So I'm installing the 96-98 cobra intake manifold, and for some reason some of the intake manifold bolts from the engine are too long. Any reason why?
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Old 08-12-2014, 08:52 AM   #139
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Quote:
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So I'm installing the 96-98 cobra intake manifold, and for some reason some of the intake manifold bolts from the engine are too long. Any reason why?
the intake manifold bolts from the engine are too long? which engine? not sure exactly what you are swapping in/on. I was able to use the mark viii bolts on my cobra manifold but had to mix and match until i got the right bolt lengths in the proper spots.
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Old 08-13-2014, 08:16 AM   #140
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Got it figured out, forgot about the spots under the manifold cover for the new manifold
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Old 08-13-2014, 08:16 AM
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98, 99, ac, cobra, coolant, delete, engine, fit, fuel, hose, mark, mustang, rails, remove, transmission, viii, wiring

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