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1986 D150 rear head port

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Old 08-23-2023, 06:23 PM
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1986 D150 rear head port


On the rear of my cylinder head, you can see a port whole. Can somebody please tell me what goes there or even better, pm a picture. it has exhaust coming out of it, and it is not part of my exhaust header. Thanks
Old 08-24-2023, 06:47 AM
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That port is for the Emission Pipe to ether the air pump or the egr system.... If you deleted the emissions system, then you can install a small freeze plug and delete the use of it.
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Old 08-24-2023, 07:06 AM
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Having never worked on a slant I didn't know what it was either but, emissions was one of my guesses. It looks like it could use one of those tear dropped shaped block-off plates used on the V8 manifolds.

Last edited by dodgem880; 08-24-2023 at 07:24 AM.
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