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-   -   Exhaust manifold bolts questions (https://www.hummerforums.com/forum/hummer-h3-17/exhaust-manifold-bolts-questions-48031/)

Happy Hummer 04-16-2024 03:25 PM

That's not what there showing at several sites lol! They are showing the m10 1.50 for the manifold to the cylinder head lol!

So, I'm gonna go with your post above m8 1.25 for manifold to cylinder and m10 1.50 for the flange.

hummerz 04-16-2024 03:53 PM


Originally Posted by Happy Hummer (Post 408019)
That's not what there showing at several sites lol! They are showing the m10 1.50 for the manifold to the cylinder head lol!

So, I'm gonna go with your post above m8 1.25 for manifold to cylinder and m10 1.50 for the flange.


My '07 original factory installed exhaust manifold is still holding sealed tight to the head with the m8-1.25 studs I installed 10yrs ago, along with the original factory installed exhaust system is still holding sealed tight with the m10-1.50. :cool:

Happy Hummer 04-22-2024 04:47 PM

Well parts came. Now just to get the work done sometime in may-june hopefully.

hummerz 04-22-2024 06:07 PM


Originally Posted by Happy Hummer (Post 408085)
Well parts came. Now just to get the work done sometime in may-june hopefully.

What parts did you get? Post a picture of the parts before you go in.:cool:

Happy Hummer 04-24-2024 05:06 PM

https://cimg1.ibsrv.net/gimg/www.hum...700a3b2404.jpg
https://cimg2.ibsrv.net/gimg/www.hum...36c752db5c.jpg
https://cimg3.ibsrv.net/gimg/www.hum...ada09945f7.jpg


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