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Discussion Starter #1
Hello, I'm considering trying to find some 4v heads for my 02, and I've seen there's diffrent year cobra, and mark heads. Which ones will work for me though?

I tried searching and couldn't find anything
 

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You can run the B or C head, they'll both work technically. However, they did make revisions on both types of heads over the years. You're best bet is to find a late model C head.
 

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Discussion Starter #3
Which years was this? I saw a guy on here had a pair of 96 cobra heads listed, would they work?
 

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Those are B heads, they'll work. Ford moved all 4V engines to the C head in 02 I think, but not positive.
 

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Also, keep in mind that you're going to have to buy a long list of swap parts. It'll be cheaper to just find a late model Mark engine.
 

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Discussion Starter #6
Would this be everything?

Heads, cams, valves etc

Timing chain
Timing cover
Injectors.
Intake
Headers/ manifolds
Valve cover
Throttle body.




I just want to find a decent set, pick them up and re do them, then peice together a eaton swap and install, I know I would still have a iron block but that's fine
 

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coolant crossover, alternator, throttle cable, IMRC deletes off the top of my head. Even more most likely. Someone else will chime in.
 

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Discussion Starter #9
I was leaning towards 4v and either turbo or a kb later on. I just have a local friend with a 99 cobra and I can get most of the eaton swap parts pretty cheap, he was going to do it, but decided to go turbo
 

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If I were in you're shoes and could get an Eaton swap done for cheap, I'd go that route as well. Try pricing out the 4v swap, then see if you can get a late Mark engine for cheaper.
 

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Those are B heads, they'll work. Ford moved all 4V engines to the C head in 02 I think, but not positive.
"C" tumble port heads started in 99. If you want the best C head, look for navigator or late model cobra heads. I believe the higher thread count heads were w late 04 revision. Count the spark plug threads before you jump on a set. The 9 thread heads are fine but are prone to eating plugs!
 

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Discussion Starter #13
Sounds like I need to find a set up c heads, if there a early model, is there a way to prevent the plug from exiting the head?
 

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Your best bet might be to get an 04/05 aviator motor. The 04/05 heads are the best as they have full threads for spark plugs, revised internal cooling and of course outflow pre 03 heads on intake and exhaust. A good set of 04/05 heads might close in on the price of the aviator motor so you are possibly gaining an aluminum block and misc 4v swap parts for cheap.
 

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Eaton only bolts on the c head .
^^^ what he said . B heads also pretty much limit your intake manifold choices to the 96-98 Cobra or 97-98 Mark8 plus they add issues with deciding what to do with the imrc's .
 

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If you don't have your heart set on an eaton swap then there is nothing really wrong with a b head swap , they flow like a mofo & no plug or head tick issues . I would do imrc delete plates and a centri with the gen2 mark intake .
 

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I personally don't think eaton swaps are worth the $. you can get a centri set up all while keeping your factory intake mani's. To prevent blowing plugs, there isn't really much you can do. I was just cruising down the road and an AWFUL miss came up on my car and started throwing check engine lights. I was extremely confused and was extremely worried my built motor just went in the ground. Got home and found it had puked the plug in cylinder 1, under normal driving. All you can do is make sure you give the motor adequate time to cool down before changing plugs. That's the only preventative measure I know of. It seems to be luck of the draw with them but most people don't seem to have the problem...BUT there are quite a few that do.
 

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Discussion Starter #19
Well from what I gathered, the b heads, and all parts will cost me + or - around $1500, but I would like to cam it, saw a bolt on mach 1s, with cams, making 360-380 at the ground. The wiring will be a peice of cake
 

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Just about everything you need to know about heads:
Ford modular SOHC & DOHC tech & specifications

I personally don't think eaton swaps are worth the $. you can get a centri set up all while keeping your factory intake mani's.
I don't see the problem with Eaton swaps. Mine was a powdercoated ported Eaton with all sorts of goodies for about the same price as a centri. Torque comes on very fast as well.

Well from what I gathered, the b heads, and all parts will cost me + or - around $1500, but I would like to cam it, saw a bolt on mach 1s, with cams, making 360-380 at the ground. The wiring will be a peice of cake
You can always yank the C heads off a Continental. You can't really use the block, but the heads are good. If you are swapping going with an aluminum block rather than just swapping heads would be nice.

I also advise if you're looking for boost to upgrade internals while you're at it.
 
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