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bent header flange

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Old Jul 16, 2019 | 04:44 PM
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Default bent header flange
bought some new in box 2 inch headers from kooks. got them coated. shop installed them only to find that it they leak. cylinder 1 and 3. pass side is fine. using mls a.c. delco gaskets. he said that sometimes stacking 2 mls gaskets will solve this problem so that's what he is goona try. I do have the kooks seal for good mls gaskets that have a bubble shape that looks like it compresses a little more. I think we could try that. any tips?
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Old Jul 16, 2019 | 04:45 PM
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the leak at the flange where they bolt to the head. so assuming they don't sit flat against the head
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Old Jul 16, 2019 | 05:40 PM
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Put a straight edge against the flange to see if it's bent, and if so, try to straighten it.
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Old Jul 16, 2019 | 10:55 PM
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Originally Posted by G Atsma
Put a straight edge against the flange to see if it's bent, and if so, try to straighten it.
I figured it may be that easy, but then thought maybe it bends in a way that makes straitening tough or something. I'll respond back after he tries 2 gaskets
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Old Jul 16, 2019 | 11:10 PM
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Nothing that can't be fixed with a torch and hand grinder. Don't overthink it.
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Old Jul 17, 2019 | 06:21 AM
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Could always see if a machine shop can jig it up and mill off the high spots if you want to get real technical.
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Old Jul 17, 2019 | 04:03 PM
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My ARH headers are the same way. I doubled up two GM MLS gaskets and all is well. Pretty depressing to pay $1500 for headers that leak. You’ll likely hurt the coating trying to fix them.
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Old Jul 17, 2019 | 09:54 PM
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Originally Posted by Che70velle
My ARH headers are the same way. I doubled up two GM MLS gaskets and all is well. Pretty depressing to pay $1500 for headers that leak. You’ll likely hurt the coating trying to fix them.
Yea it's funny cause I'm like darn shoulda went arh
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Old Jul 19, 2019 | 01:47 PM
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My ceramic coated Hookers leaked at cylinder 8, You'd think theses companies could do a quality check before shipping stuff. My TSP headers were perfect.
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Old Jul 23, 2019 | 10:30 PM
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the double gasket fixed the problem
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Old Jul 24, 2019 | 08:03 AM
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AC Delco 12617944 Is that the right part number for the gaskets?
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Old Jul 24, 2019 | 09:22 PM
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Originally Posted by Floorman279
the double gasket fixed the problem
Awesome!
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Old Jul 25, 2019 | 10:17 AM
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Originally Posted by Floorman279
Yea it's funny cause I'm like darn shoulda went arh
I didn’t have any problems with my ARH install. Fit amazingly well and great ground clearance. The TSP’s I tried before were an absolute nightmare.
Last edited by 99Silver6.0; Jul 26, 2019 at 07:56 AM.
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