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01-25-2020, 06:33 PM | #1 |
Registered User
Join Date: Oct 2019
Location: Fairhope
Posts: 8
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79 250 integrated head exhaust manifold crack
I have noticed that I have a cracked exhaust manifold for my 79 250 inline 6 with the integrated head. I have searched online, and can not find anything for a replacement. I can find plenty for the NON integrated. Can anyone help on where I can find one? Thanks.
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01-25-2020, 07:37 PM | #2 |
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Join Date: Dec 2012
Location: Temple City
Posts: 3,628
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Re: 79 250 integrated head exhaust manifold crack
Depending on the cracks you can use a certain type of arc welding rod to fix the issue, but you have to remove the head.
As for the non integrated it is what people want. |
01-25-2020, 08:09 PM | #3 |
Registered User
Join Date: Oct 2019
Location: Fairhope
Posts: 8
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Re: 79 250 integrated head exhaust manifold crack
Welding may be my only fix since a replacement exhaust manifold seems to be non existent.
For the weld, since it's the exhaust manifold is cracked, do I need to remove the head? Should I be able to disconnect the exhaust manifold from underneath the integrated head? Thanks. |
01-25-2020, 10:11 PM | #4 |
Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,628
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Re: 79 250 integrated head exhaust manifold crack
Not sure. I do know you have to drill holes at the end of the cracks, and open the crack up with a grinder to allow penetration.
Also it depends on how are where the crack is situated. I "repaired" a Toyota manifold one time with a regular mig welder long enough to trade the truck in. It wasn't so bad, and you can cut a arc welding stick down to help with the job. Also I heard preheating the manifold or cast metal helps, and keep heat on it as it cools. I used MAP gas. |
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exhaust manifold, inline 6 chevy c10, integrated head |
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