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Switched from perimiter bolt to center bolt valve covers and the pass side cover only has the rear most fitting.
The forward fitting and line (red) isn't there.
Do I need it?? Can I block off the fitting on the TB and eliminate this hose???
Yup, you need it. It supplies fresh filtered air to the crankcase. Without it, you'll pull manifold vacuum in the crankcase.
Another option would be to replace the oil filler cap with a breather. Then you could remove and plug that supply line. Fresh air would come in through the breather.
Third option might be to hook the PCV line to one fitting on one valve cover, and the supply from the throttle body to the other fitting on the other valve cover.
Last edited by Warp Factor; May 1, 2006 at 05:42 PM.
Most auto supply stores carry them. Be sure to take the extension housing out of your valve cover and take it to the store to get the breather that will fit where the cap came out. If you just try to put the breather on where the fill cap was the breather usually hits the hood.
You have LS6 valve covers, that is why the passenger cover only has one connector. They have a different PCV than the one in the pic. A breather will work, but you might get some oil in the engine bay from it. I know I would. Also, if it matters, it's not EPA 'friendly', if not go for it. Also, I don't know if you have a stock throttle body, but you will need to cap the hose that used to go between the throttle body and the valve cover. That will be a variable vacuum leak (air behind the MAF). Don't ask how I know.