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Discussion Starter #1
are the 4v heads from a 01 continental basically the same as a mustang "C" head with different cams?
 

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Yes, and they may have the 'best' stock cams.
 

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Same as the 99 and 01 Mustang Cobra yes. The 03/04 heads are different.

01 Continentals have the same cams as the 01 Cobra, 99 Continentals supposedly share the 99 cobra cams which have a bit more duration on the intake. The best stock intake cams are from the 96-98 Cobra.
 

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Discussion Starter #4 (Edited)
THANKS FOR THE FAST replies.
the reason i ask is i am trying to upgrade my 97 mark viii motor with C heads and supercharger on the cheap.
a local yard has a complete 120K motor for $300. that would be cheaper than buying used C heads off a mustang.
i have a complete set of 08 GT500 cams that i could use instead of the stock cams.
are the GT500 cams better than the 01 cams?
 

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Discussion Starter #6
ok THANKS FOR THE INFO.

whats the difference between the 99/01 heads and the 03/04 heads?

the reason i ask is because i know where i can get a ported supercharger, elbow and throttle body off a 03 mustang cobra on trade for some body work.
the owner upgraded his to a tvs 3.9 i think.

would the 01 heads work with a 03/4 intercooled intake?
or what intake and heads would i have to get to put this on a teksid block?
 

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The exhaust ports are more square on the 03/04 C heads they flow slightly better in the mid range and the combustion chamber in the 99/01 are 54cc vs 52cc in the 03/04
 

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Discussion Starter #10
THANKS FOR THE INFO.
i knew it was a good idea to join this site. lots of good info here.

instead of trying to shoe horn a 5.4 4v motor in a mark viii. it looks like i will be building a terminator motor on the cheap.
 

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A 4.6 is a better option than a 5.4 anyways, as far as the needed work for the swap. Plus the geometry is better for performance.
 

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Or Adding The Crack Pipe Mod, Or...
 

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The Ticking Problem Results From A Cooling Problem That Was Resolved With The 03+ Casting. I Believe The 03+ Head Can Be Identified By A Blue Mark On THe Backside Of The Head.
The infamous "blue stripe" is located above the exhaust ports, below the valve cover surface. Blue stripes can tick also. The "tick" is actually the exhaust seat falling out. The cooling mod does help these though, however its still a bandage for a bullet wound. The proper repair is to replace the seats, guides, and valves.
 

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The infamous "blue stripe" is located above the exhaust ports, below the valve cover surface. Blue stripes can tick also. The "tick" is actually the exhaust seat falling out. The cooling mod does help these though, however its still a bandage for a bullet wound. The proper repair is to replace the seats, guides, and valves.
Nick from modularheadshop had a great video showing these seats loosening up - it's more common that you think and not just on these particular heads.

Chris is absolutely correct with the proper repair procedure (shop which is familiar with this problem and solution).
 

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The infamous "blue stripe" is located above the exhaust ports, below the valve cover surface. Blue stripes can tick also. The "tick" is actually the exhaust seat falling out. The cooling mod does help these though, however its still a bandage for a bullet wound. The proper repair is to replace the seats, guides, and valves.
The blue stripe is above the intake ports as well

<a href="http://www.flickr.com/photos/[email protected]/8152239477/" title="DSC01301 by XR7-4.6, on Flickr"><img src="http://farm9.staticflickr.com/8348/8152239477_0038711a59_c.jpg" width="800" height="600" alt="DSC01301"></a>

<a href="http://www.flickr.com/photos/[email protected]/8152239303/" title="DSC01299 by XR7-4.6, on Flickr"><img src="http://farm8.staticflickr.com/7265/8152239303_880ff0f726_c.jpg" width="800" height="600" alt="DSC01299"></a>
 

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No worries about tick or valve seat problems on those heads, I only ever see it on 4V heads from boosted motors that were on stock valve guides, early or late doesn't matter. You need to use 03+ intake gaskets and grind off the "nub" that sticks into the valley on the intake gasket area, the blower will hit against it. Stock the flow is poor on the intake side, it needs some bowl work and the short side reformed and its a decent low buck head.
 

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whats the difference between the 99/01 heads and the 03/04 heads?
99/01 intake ports have a lower intake floor which results in a poor short run radius and as already mentioned their exh port is a smaller than those in the 03/04 heads. As far as performance potential in a forced induction application goes, you will see little to no difference in power with the 99/01s even in stock form. There is however a power delta in n/a applications.

The 03/04 "blue stripe," it means nothing.
 
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