Head cooling mod.
We will be doing a compression test before the engine comes out of the carIf 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.
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.
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
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-onC-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
Just a heads up, but C beads don't just simply bolt on to 96-98 Cobra engine.
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 it was a blown head gasketDid the op find out what the issue was
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After doing some research the b heads will be fine for what I plan on doingI thought our b heads were good flowing heads? I don't understand why you would want to do a c head swap
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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
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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 futureB 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.
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 futureAfter 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