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:

 

After thinking about it more, I am considering this configuration. Any thoughts?

 

Anyone?

 

 

This is pretty much correct except you dont run the line over to the passenger side cover, just cap the passenger side off.

 

Thanks!

 

What coolant crossover are you running? Where is the outlet to TB from the crossover going to?

 

The coolant crossover is from a '99 LS1. The line will bypass the throttle body and run to the stock location on the radiator.