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.

Header leak...

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Old 03-21-2006, 05:44 PM
  #1  
fordracing1122
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Default Header leak...

I just put some Flow Tech Equal Length Headers on my 91' LX the other day but i cant seem to get them tight enough to seal on the gasket they came with.
Is there a better gasket i can use or maybe a special wrench?
Thanks for the help
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Old 03-21-2006, 06:01 PM
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ckyguy68
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Default RE: Header leak...

the gaskets they come with are crap, but i didnt think they were that bad. if you cant get those to work try FELPRO gaskets. they work great. about $20 for 2 header gaskets.
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Old 03-21-2006, 06:43 PM
  #3  
fordracing1122
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Default RE: Header leak...

Well its not that bad of a leak like one cylinder but it is still annoying... Just wondering
Thanks
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Old 03-21-2006, 06:47 PM
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ckyguy68
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Default RE: Header leak...

not positive, but once again could be the cheap gasket. try these out. i use them and havent had a problem.

http://store.summitracing.com/defaul...earchType=Make
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Old 03-21-2006, 07:10 PM
  #5  
Hurricanedt77
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Default RE: Header leak...

I used Red RTV on my headers with no gasket, and guess what, no leaks! My buddy got this set of header gaskets from auto zone, they are sick, looks like 8 sheets of raised thin metal and they gurantee to seal no matter what, paid 28 bucks for the pair I think...
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Old 03-21-2006, 08:57 PM
  #6  
kl92gt
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Default RE: Header leak...

i got copper gaskets never had a problem since i got them i had the regular gaskets and would blow them all the time but with the coppers i havent had a problem
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Old 03-22-2006, 04:13 AM
  #7  
hardcore91LX
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Default RE: Header leak...

I had a problem with mine leaking till i got a set of aluminum gaskets seal great and are suppost to be reusable.
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Old 03-22-2006, 04:23 AM
  #8  
randy78045
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Default RE: Header leak...

I use felpro gaskets... ah, two per side... no problems...
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Old 03-22-2006, 06:12 PM
  #9  
fordracing1122
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Default RE: Header leak...

So if i use Fel-Pro, Aluminum, or Copper i should be good...
Thanks guys
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Old 03-22-2006, 06:32 PM
  #10  
hardcore91LX
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Default RE: Header leak...

yeah you should the nice thing about the aluminum ones i got is that they are supposed to be reusable but they are not cheap.
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