Difference between LS6 and LS1 PCV system?
Thread Starter
Melting Slicks
Joined: Feb 2003
Posts: 2,966
Likes: 22
From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11
Difference between LS6 and LS1 PCV system?
Are the valve covers the same but the PCV hoses are different? I'm up grading to LS6 but need correct PCV system. I already have the new LS6 valley cover. Any help would be appreciated. Pics would be better!
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
The Z06 valley cover is all you really need. The passenger valve cover only has one outlet tube compared to the LS1 which has two. You plug the rear driver PVC outlet in your valve cover (GM has an expensive plastic one but you can rig something) and the rear passenger tube in that valve cover (a rubber plug will work here). Then you run a hose from the PCV outlet in the valley cover to the PCV valve and then the inlet to the intake. The same hose that goes from the TB to the passenger front tube is still used. My pic below is a bit different because I run a catch can between the PCV valve and the intake to intercept a good bit of oil. The Z06 PCV mod alone is not a cure-all which is why I still run a catch can.
