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Old 03-19-2016, 11:57 AM   #1
Fla Grown
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250 manifold vacuum ports differences

I am replacing my intake manifold on a 250 6 cylinder and the replacement manifold I purchased does not have a vacuum port on the top of the manifold like my original one has. I was using the one on top for the PCV valve and the one on the side for my power brake booster. Can I use the side port for both PCV and brake booster or do I need to look for another manifold?
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Old 03-19-2016, 12:03 PM   #2
geezer#99
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Re: 250 manifold vacuum ports differences

Just drill and tap the new one for the fitting.
You shouldn't combine the pcv and booster on one.
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Old 03-19-2016, 03:39 PM   #3
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Re: 250 manifold vacuum ports differences

Where is the best place to tap? The metal seem thin in the same place the OG manifold is ported.
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Old 03-19-2016, 03:52 PM   #4
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Re: 250 manifold vacuum ports differences

There was an adapter fitting that went on the side of the manifold that was included in the dealer installation kit.

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Old 03-19-2016, 03:54 PM   #5
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Re: 250 manifold vacuum ports differences

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Old 03-19-2016, 03:59 PM   #6
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Re: 250 manifold vacuum ports differences

If your not particular of originality you could use one of these with adapters.

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Old 03-19-2016, 04:02 PM   #7
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Re: 250 manifold vacuum ports differences

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Old 03-19-2016, 04:03 PM   #8
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Re: 250 manifold vacuum ports differences

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Old 03-20-2016, 11:25 AM   #9
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Re: 250 manifold vacuum ports differences

Ordered this from Summit.
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Old 03-28-2016, 11:04 AM   #10
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Re: 250 manifold vacuum ports differences

Installed new vacuum port fitting and everything is working as it should!
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Old 03-28-2016, 12:11 PM   #11
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Re: 250 manifold vacuum ports differences

Great, would you have the Summit part # handy for someone else to reference?
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Old 03-28-2016, 01:14 PM   #12
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Re: 250 manifold vacuum ports differences

Classic Performance IN38V60-C - Classic Performance Vacuum Fittings and Assortment Kits

Summit Part Number: CLP-IN38V60-C
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Old 03-28-2016, 05:11 PM   #13
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Re: 250 manifold vacuum ports differences

Good stuff to know.
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Old 03-28-2016, 06:27 PM   #14
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