'94 Mark VIII headers

Just had to

I just had to post a pic. The color is rose mist. Not the manliest color in the world but definitely different.
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Headers on a NA mark are not worth the money. Just opening up the exhaust can do a lot more, the manifolds are pretty good. Or upgrade to some 94 manifolds for $50 if you really are concerned about flow.
 
unity said:
Headers on a NA mark are not worth the money. Just opening up the exhaust can do a lot more, the manifolds are pretty good. Or upgrade to some 94 manifolds for $50 if you really are concerned about flow.
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What do you mean an NA Mark? It is a 94 so it has 94 manifolds, correct? Sorry for being a bit slow on the tech stuff. I have owned 3 Mark VIII but have not put a lot into them so I am not what you would say "up" on all of the terms. Thanks for the reply.
 
mattman1206 said:
What do you mean an NA Mark? It is a 94 so it has 94 manifolds, correct? Sorry for being a bit slow on the tech stuff. I have owned 3 Mark VIII but have not put a lot into them so I am not what you would say "up" on all of the terms. Thanks for the reply.
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Naturally aspirated or "normally" aspirated depending on who you talk to. There are much better areas to spend the money, like gears, traction-lok rear and a converter for about the same money in parts. Oh, and your front wheels are on backward. They are directional.
 
Headers absolutely will make a difference! Driller has them and said they definitely made a noticeable difference. I would take what he says WAAAAY before many on here that bench race. He has numbers to back up his claims.

Mid length or long tubes will make the best gains. Kooks mid lengths are a direct bolt on. I have through loooong searches found info on people that did BBK longtubes but it took a TON of fabricating so it was more beneficial price wise to opt for the mid lengths.

If you find Ford Racing shorty headers they work too and some members on here have installed them years ago. Just do a search (but I warn you it will take a good amount of time pouring through threads to find the ones where you get answers). The benefit of them wouldn't be in the flow as much, but would be in the ability to properly delete the cat.

My car has issues because of the cat being gutted, but I'm convinced it's because of the turbulent flow of the cat housing as opposed to straight pipes. The only way to fix that is to get headers since the ds header and cat are one piece.
 
ripped camel said:
My car has issues because of the cat being gutted, but I'm convinced it's because of the turbulent flow of the cat housing as opposed to straight pipes. The only way to fix that is to get headers since the ds header and cat are one piece.
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I fabricated a driver side stock manifold one time on a '93 that I had. I took it off of the car and cut the cat off at the very top edge of it! (To save as much of the manifold as possible.) Than I cut the "Coupling or flange" off of the bottom of the cat and welded it on the manifold W/O the cat on it. Than I cut out a spot and welded a piece with threads for the o2 sensor and egr tube. It was alot of work but it was better than paying $700 for the headers at the time. I cleaned it up real nice and put it on. I went ahead and had true duals ran all the way from the manifolds back with some borla mufflers on it!!! But I could have just had them add a piece of exhaust pipe where I removed the cat!!! But it worked pretty good and I could feel some gain from it!!!
 
marked8 said:
. There are much better areas to spend the money, like gears, traction-lok rear and a converter for about the same money in parts. Oh, and your front wheels are on backward. .[/QUOTE
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I agree. headers do help but they are very expensive 800.00 and it is very labor intense particularly when your paying for it. So gears with a traction lock and a stall convertor with lock up and maybe a shift kit and free up the exhaust(a X-pipe resonator with duals out or a 3 in or more single out) would be a lot more for your money. I had a whole rear end with trac- loc and 3:73 gears and sold it for 300.00. A least I think it is sold (not paid yet) If not I'll let you know.
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you dont have to pull the motor to put them on you do however need to drop the k member. i have owned 9 mark VIII's in the last 6 years, my current 97 lsc has kooks headers and its NA until this winter and the headers make a huge difference compared to all my other marks i have owned, i agree they are pricey so what isnt on these cars. i would never want stock manifolds again after having my kooks on my cars.

and here dan, this is my rosemist 94!!

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Thats funny Jamie, yours and his look exactly alike. Even the wheels on backwards unless they are suppose to be like that!!! Well did until it got the Jamie parting out done to it, lol!!! Oh and Does anyone know how hard it is and What all you have to do to use headers for the cobra mustang?
 
You don't need to pull the motor (as it's been said in this thread before).

And personally, I think headers help. Not much, but they do help. Of course, they'd help more if you don't have kitties and/or mufflers - resonators. But without at least mufflers, the car will be loud. Very loud.
 
[
QUOTE=BAD97LSC;707981]. i have owned 9 mark VIII's in the last 6 years, my current 97 lsc has kooks headers and its NA until this winter and the headers make a huge difference compared to all my other marks i have owned, i agree they are pricey so what isnt on these cars. i would never want stock manifolds again after having my kooks on my cars.
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Mine has Kooks headers on it also and this is my 3rd Mark. I stand corrected about the pulled engine. My point though was that for the money (bank for the buck) headers are low on the list. They help but not that much.
 
Frogman said:
And personally, I think headers help. Not much, but they do help. Of course, they'd help more if you don't have kitties and/or mufflers - resonators. But without at least mufflers, the car will be loud. Very loud.
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loud is an understatement to say the least, here is the "thundermark" (for all you newbs that dont know, 95 bird with 95 dohc, kooks no cats and 4 mufflers) and its still loud as hell (if vid dont load click link at top)
dohc bird flyby part 2 Video by chicken - MySpace Video
 
Don Pfau said:
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Mine has Kooks headers on it also and this is my 3rd Mark. I stand corrected about the pulled engine. My point though was that for the money (bank for the buck) headers are low on the list. They help but not that much.
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Then you must not have off road pipes in place of your stock cats. On my 03 GT I had BBK Lt's put on and I barely noticed a difference. I asked the installer why and he said because the flow characteristics were hindered by the cats. He said if I installed an off road H or X in place deleting the cats I would not only net the gain for deleting them, but would also net all the gains that I was supposed to gain from the added flow from the headers.

I did exactly what he said and it was a NIGHT AND DAY DIFFERENCE! The car pulled so freaking hard after adding that. And that's with a 2v motor. With a 4v motor the gains would only intensify since they have much better flow.

I can care less what people say to me about deleting cats, if done right and tuned out properly headers with straight pipes in place of the cats will give you good gains.
 
[
quote=ripped camel;708552]Then you must not have off road pipes in place of your stock cats. On my 03 GT I had BBK Lt's put on and I barely noticed a difference. I asked the installer why and he said because the flow characteristics were hindered by the cats. He said if I installed an off road H or X in place deleting the cats I would not only net the gain for deleting them, but would also net all the gains that I was supposed to gain from the added flow from the headers.

I did exactly what he said and it was a NIGHT AND DAY DIFFERENCE! The car pulled so freaking hard after adding that. And that's with a 2v motor. With a 4v motor the gains would only intensify since they have much better flow.

I can care less what people say to me about deleting cats, if done right and tuned out properly headers with straight pipes in place of the cats will give you good gains.[/QUOTE
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Yes I agree my past Mark was N/A and we freed up the exhaust - cats with X-pipe resonator and duals and it helped a lot. My present Mark is supercharged but had a modified stock exhaust. I bought a parts car with Kooks headers and a custom Magnaflow 2 1/4 in exhaust. We installed them on mine but it didn't run much better. We started a new exhaust with 2 1/2 in. pipes behind the headers and no cats and a Magnaflow dual in by 2 1/2 and dual out by 2 1/2 in. resonator and then 2 1/2 in all the way back. Big difference. So yes it takes more than just headers.
 
i dont have just the kooks headers, after that i have 2 magnaflow high flow cats, a bassani x pipe, then dual 2.5 inch mandrel pipes into a pair of stainless magnaflow mufflers. i didnt say that earlier.
 
BAD97LSC said:
i dont have just the kooks headers, after that i have 2 magnaflow high flow cats, a bassani x pipe, then dual 2.5 inch mandrel pipes into a pair of stainless magnaflow mufflers. i didnt say that earlier.
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What car did you order your x-pipe for i looked and they didnt have one for the mark I assume it was from a mustang
 
BAD97LSC said:
i dont have just the kooks headers, after that i have 2 magnaflow high flow cats, a bassani x pipe, then dual 2.5 inch mandrel pipes into a pair of stainless magnaflow mufflers. i didnt say that earlier.[/QUOTE
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On my Cobra we put Bassani high flow cats with a X-pipe and a Borla cat back (no headers). Sounds and works great. These engines really seem to like the X-pipe.
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