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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 07-03-2014, 02:43 AM   #11
Js88lx
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ok kool. I just have to check later. I did put the bbk header back on but when i did have it off i tried looking for that carbon spot but couldnt see anything. Actually to tell you the truth i think just under the #7 port i could see what looked like burn or carbon on the head, i figured that was probably where my leak was. I wonder if a shop can re-surface the header?
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Old 07-03-2014, 02:03 PM   #12
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Install a Percy's gasket.
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Old 07-03-2014, 02:52 PM   #13
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These?

http://www.jegs.com/i/Percys/760/660...oductId=744841
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Old 07-03-2014, 03:08 PM   #14
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You could probably save 8 or 10 bucks by going with a summit racing aluminum or copper gasket. Metal gaskets hold up a little better than the usual cardboard crap.
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Old 07-03-2014, 03:17 PM   #15
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OK.kool. But iv never had this problem before with other bbk headers iv had on all my other stangs., why would these give me such hassle? Iv always used mr gasket's and never had a problem.
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Old 07-03-2014, 03:57 PM   #16
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I cant find the summit racing ones..?
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Old 07-03-2014, 04:02 PM   #17
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Similar to the aluminum gaskets I was referring to. They are soft and thicker than standard gaskets. I went through two sets of cheap header gaskets and they always ended up leading after a few months. Once I installed the aluminum ones they sealed for good and never had a problem the rest of the time I had the car.
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Old 07-03-2014, 04:04 PM   #18
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Quote:
Originally Posted by Js88lx View Post
From what I can tell at a glance, yes, those.

Don't F around over a couple of dollars. Percy's = win. I buy from summit since their support is legendary and unwavering.

I'd also toss the BBKs in the trash can, but that's a different rant for another time.
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Old 07-03-2014, 04:33 PM   #19
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Quote:
Originally Posted by Maxwelhse View Post
From what I can tell at a glance, yes, those.

Don't F around over a couple of dollars. Percy's = win. I buy from summit since their support is legendary and unwavering.

I'd also toss the BBKs in the trash can, but that's a different rant for another time.
I kinda do want to get rid of them! What would you recommend? Nothing too expensive!! oh and carb legal if possible.., no biggie but would save me the swap every 2 years!
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Last edited by Js88lx; 07-03-2014 at 04:33 PM. Reason: edit
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Old 07-03-2014, 04:34 PM   #20
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Quote:
Originally Posted by dawson1112 View Post
Similar to the aluminum gaskets I was referring to. They are soft and thicker than standard gaskets. I went through two sets of cheap header gaskets and they always ended up leading after a few months. Once I installed the aluminum ones they sealed for good and never had a problem the rest of the time I had the car.
ok. but my header leak is instant! Right after I install them turn car on and give it gas and there it is... tick tick. At idle you cant even hear it.
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Old 07-03-2014, 04:34 PM
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