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Exhaust Manifold Bolt

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Old 09-20-2019, 08:24 PM
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Default Exhaust Manifold Bolt

Anybody have the size and thread pitch for the exhaust manifold bolts? Have to change my header gaskets (they leak) and don't know the size. Google gives me 3 different sizes
 
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Old 09-20-2019, 09:00 PM
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Pretty sure they are coarse thread, either 5/16 or 3/8. Usually 3 sizes smaller than the head.
 
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Old 09-20-2019, 09:08 PM
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Originally Posted by 2bit
Pretty sure they are coarse thread, either 5/16 or 3/8. Usually 3 sizes smaller than the head.
I just need to find the size so I can find header studs
 
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Old 09-21-2019, 10:52 AM
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They are 5/16 - 18.

I know you didn't ask, but I used Remflex gaskets and stage 8 locking hardware when I installed my shorty headers and they haven't loosened or leaked since installation several years ago.
 

Last edited by Jimythefan; 09-21-2019 at 10:54 AM.
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Old 09-21-2019, 11:10 AM
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Originally Posted by Jimythefan
They are 5/16 - 18.

I know you didn't ask, but I used Remflex gaskets and stage 8 locking hardware when I installed my shorty headers and they haven't loosened or leaked since installation several years ago.
I seen Remflex but for $50 I'll just buy 10 sets of regular gaskets
 
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Old 09-21-2019, 11:27 AM
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Originally Posted by MoparFanatic21
I seen Remflex but for $50 I'll just buy 10 sets of regular gaskets
Do you enjoy changing them that much?
 
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Old 09-21-2019, 11:28 AM
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Originally Posted by HeyYou
Do you enjoy changing them that much?
This one lasted roughly 80K :b with me buying stuff for my garage the green stuff is in short supply
 



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