96 Cobra losing water and steam out of the tail pipes

Tillerman77

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If the engine is still in the car, did you do a compression check? As you might guess, any compression issues could be dealt with when the engine is pulled.
 

Martin6107

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Decking the heads will change the timing chain geometry slightly. Replace the timing chains (Ford racing makes a nice set M-6004-A464), replace oil pump and degree the cams. Send the injectors out for ultrasonic cleaning.

Disassemble both IMRC's while they are out. Clean all the parts and replace the o-rings during reassembly. The IMRC o-rings tend to dry up and leak like crazy after a few years. Replacements can be found at your local hardware store for a few dollars.
 
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nomoretickets

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Since I'm going to have the engine out of the car the heads are going to the machine shop to get decked and I'll probably have them clean them up to is there anything else that I should do to this for 4.6 DOHC Cobra motor is there any little fixes that anybody knows about that we should do why the engines out of the car

C-Head swap. Its well documented in the stickys of this forum, and there are very few things you would need to do differently vs. just replacing the head gaskets. If you are are already putting the time and money into a rebuild, and doing 98% of the work for a c-head swap anyway, then in my mind there are very few reasons to not update your heads. Even just updating to the 99/01 heads would give you a motor that is significantly better in basically every application imaginable.
 

Nick1996

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C-Head swap. Its well documented in the stickys of this forum, and there are very few things you would need to do differently vs. just replacing the head gaskets. If you are are already putting the time and money into a rebuild, and doing 98% of the work for a c-head swap anyway, then in my mind there are very few reasons to not update your heads. Even just updating to the 99/01 heads would give you a motor that is significantly better in basically every application imaginable.
Okay I need some more education on this 9901 Cobra C heads how can I identify them what kind of work do they need to have done to them and are they a direct bolt-on
 

Nick1996

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The plan for right now is to just get the engine back to good running condition and get a good tune drive for a couple of years while I buy some parts and then do a complete rebuild would like to set it up for a Supercharger
 

nomoretickets

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Okay I need some more education on this 9901 Cobra C heads how can I identify them what kind of work do they need to have done to them and are they a direct bolt-on

This article discusses the various head options on the market. Best to stick with 99/01 Cobra C heads or 03-04 Cobra/Mach 1 heads (yes, they are the same). 99/01 C heads tend to be cheaper because they do not flow as nicely as the 03-04 design, but they are a marked improvement over the B heads. Regardless, you will also need a C-Head intake. There are a few options out there for this, do your research and decide what works best for you.
http://www.mustangandfords.com/parts/m5lp-0412-ford-four-valve-head-information-guide/

Just a heads up, but C beads don't just simply bolt on to 96-98 Cobra engine.

C heads do simply bolt on to a 96-98 cobra teksid block. In fact, many did so from the factory. Assuming you mean simply that there are some other considerations involved in the swap, yes. But they are fairly minor and dont really require any additional headache compared to disassembling the entire motor to change head gaskets.

C Head Swap Thread here > https://www.svtperformance.com/forums/threads/c-head-swap.703051/

OP, if you have any questions, shoot NA_SVT a pm on here. He knows everything there is to know about these motors, and if you are interested, will talk your ear off about cam profiles.
 

98 svt

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This article discusses the various head options on the market. Best to stick with 99/01 Cobra C heads or 03-04 Cobra/Mach 1 heads (yes, they are the same). 99/01 C heads tend to be cheaper because they do not flow as nicely as the 03-04 design, but they are a marked improvement over the B heads. Regardless, you will also need a C-Head intake. There are a few options out there for this, do your research and decide what works best for you.
http://www.mustangandfords.com/parts/m5lp-0412-ford-four-valve-head-information-guide/



C heads do simply bolt on to a 96-98 cobra teksid block. In fact, many did so from the factory. Assuming you mean simply that there are some other considerations involved in the swap, yes. But they are fairly minor and dont really require any additional headache compared to disassembling the entire motor to change head gaskets.

C Head Swap Thread here > https://www.svtperformance.com/forums/threads/c-head-swap.703051/

OP, if you have any questions, shoot NA_SVT a pm on here. He knows everything there is to know about these motors, and if you are interested, will talk your ear off about cam profiles.



Yes, I'm referring to everything else that comes along with a C head swap.
I said they don't simply bolt on to a 96-98 Cobra engine (which would include intake and all other accessories).
It's obvious the C heads bolt onto a Teksid block, but the way you worded it originally, someone new may think they could buy some C heads, open the hood, pull the Bs and throw on the Cs. I was just stating it's more involved than that, and more parts are required.
 
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nomoretickets

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I thought our b heads were good flowing heads? I don't understand why you would want to do a c head swap

Sent from my [device_name] using the svtperformance.com mobile app

B Heads flow really well. Too well in fact. They move big volumes of air, but at super low intake velocities. So if you are spinning 8000 rpm under 30 lbs of boost, they will kick ass. If you are building a street car, they arent great. C heads make for a much better powerband for street cars.
 

Nick1996

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B Heads flow really well. Too well in fact. They move big volumes of air, but at super low intake velocities. So if you are spinning 8000 rpm under 30 lbs of boost, they will kick ass. If you are building a street car, they arent great. C heads make for a much better powerband for street cars.
After doing some more research on it I've decided to keep the B heads I got a friend who thinks he can gasket match them and clean the port up a little bit and increase the velocity in the low end if that doesn't work I'm just going to an aftermarket head I do plan to put a supercharger on the car in the future
 

Nick1996

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After doing some more research on it I've decided to keep the B heads I got a friend who thinks he can gasket match them and clean the port up a little bit and increase the velocity in the low end if that doesn't work I'm just going to an aftermarket head I do plan to put a supercharger on the car in the future
So I guess there is no aftermarket head I was wrong about that doing doing a little bit of research I do want to put a supercharger on this car in the future
 

97snakebite

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Build the heads for the future...They are off so why no. Just one less thing. With that said

- Tooley Springs
- SS valves.. Id just stick with Standard
- ARP Cam Bolts.
- ARP Tower Studs ( Not needed but cheap to just buy. You gotta replace the stock ones antyways. Just spend the coin and you wont have to buy OE again when you get cams )
- New lifters ( piece of mind )

If you plan is just to get it up and running i would stick with the stock Primary/secondary gears. Just get new chains and guides. don't worry about adjustable till you get cams.

BTW all the ARP items are reusable where the stock isn't. Sets you up again when ready for bigger things. Money spent once. Best money spent.
 

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