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Need Help With PCV VAC Line

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Old 04-03-2011, 01:47 PM
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Default Need Help With PCV VAC Line
I am in the finishing stages of my 402 and need help with the plumbing of the PCV lines. I have LS9 valve covers that have one port each. It is my understanding that these ports are for fresh air intake. I am running an L92 intake manifold that has a line coming from the top to the driver side valve cover. But I think this is a vacuum line and should not be connected to a fresh air port.

My valley cover is an LS6 which I understand has the PCV built-in so that port would be engine air out. So if someone could help me connect the dots, I would appreciate the help. Here are some pictures:







Last edited by Duntov1967; 04-03-2011 at 02:10 PM.
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Old 04-03-2011, 06:10 PM
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After thinking about it more, I am considering this configuration. Any thoughts?

Last edited by Duntov1967; 04-04-2011 at 07:51 PM.
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Old 04-04-2011, 07:51 PM
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Anyone?
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Old 04-04-2011, 08:07 PM
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Old 04-04-2011, 08:09 PM
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Originally Posted by Duntov1967
After thinking about it more, I am considering this configuration. Any thoughts?

This is pretty much correct except you dont run the line over to the passenger side cover, just cap the passenger side off.
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Old 04-05-2011, 06:25 PM
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Thanks!
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Old 04-05-2011, 07:48 PM
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What coolant crossover are you running? Where is the outlet to TB from the crossover going to?
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Old 04-05-2011, 08:35 PM
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The coolant crossover is from a '99 LS1. The line will bypass the throttle body and run to the stock location on the radiator.
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