Pcv related issue

[Donovan1980]

I have a set of aftermarket value covers for my LS motor and it does not have Pcv breather tube like the stock covers. What do I do? Please help.

[parsonsj]

Honestly... send them back. You really really need to run a PCV.

[Donovan1980]

I've got an ls3 with aftermarket billet valve covers with no Pcv provision on them. How do I hook one up please help

[Donovan1980]

I can't send them back at this point any way to make what I have work?

[dhutton]

http://www.lateral-g.net/forums/showthread.php4?t=49682

[dontlifttoshift]

Which covers?

You still have the tube from the valley cover to the throttle body right? Then you just need a way for fresh air to get into the engine.

If you are running a speed density tune, without a MAF, then you can put a filter where the fill cap is.

If you have a MAF, then you should get the fresh air from the intake tube. You would hook up between the MAF and the throttle body. Technically that qir ends up in the intake, that's why it should be metered by the MAF. You can drill and tap the cover on the side, install fitting, route hose, done. This will work fine on a non power adder mostly stock LS3. The tubes in the stock valve covers are restricted down to .105" the Holley valve covers are not.

If supercharged, see link above. If big horsepower with track time in the future, I recommend -10 or 5/8" breathers from each cover to a dedicated breather can.

[dhutton]

From the link I posted:

http://www.shophemi.com/images/media/p-2273-arrington_ccv_bible.pdf

Don

[dontlifttoshift]

That's some good reading, thanks!