why did they get rid of them?

 

its there, I am trying to find it myself. I hope someone will post a pick of it on an 02 or later.

 

no its not there

 

It is there but its not It is now built into the valley cover/baffle assembly and is more an orifice than a valve. On the outside instead of an external valve in the hose to the intake, it is just a plain hose from the cover to the intake.

Mike Norris

 

does it work better this way?

 

The valley cover baffling is definitely better than the LS1 valve cover style routing. Now whether or not the new valley cover ('04 and up) is better then the older style is debateable. Since it is an orifice style system, a one way check valve is a good idea on forced induction engines. Later.

Mike Norris

 

Fixed orifice PCVs are poop. I have one, and I did a test by capping off my PCV and my idle stabilized a lot. You could even see the MAP difference in my HPTuners logs. I just bought a regular one, and I will log with that and see how it goes. If it doesn't help I may just go with a breather...

 

They didn't get rid of it, they just moved the damn thing. Now I owe the O'Reilly guy an apology for saying he was wrong.

Here are some photos of it:

 

dude this is on a 04 Z06 not a 02 Z28. believe me its not there. i had an 01 WS6 and it looked just like the pics you attached.

 

The Z06 has a special oil separater built into the lifter valley cover, here at the dealer when we do rings on one of these for oil consumption we are instructed to use the "second design" cover on the ealy Z06 when we reassemble the engine. This is also an oil consumption concern so there must be an internal change in that cover. There is NO PCV like the LS-1 has.