LS1 to LS6 PVC conversion help

[vettenuts]

I just did this. The driver's side valve cover rear connection gets capped. The passenger side valve cover rear connection gets capped (I updated valve covers as well do I didn't need to cap the passenger side, driver's side comes capped). Connection from throttle body to passenger side valve cover remains as it did on original setup. Tube goes from valley cover into intake on passenger side. I ran mine to a catch can then to the intake though. I can check the valley part number when I get home from work if you need it.

I was fortunate and bought mine from someone on e-bay who was selling the valley cover and valve covers as a set. He bought a crate motor and was installing in an older f-body so he used the original parts. Interesting that GM is shipping the crate motors with this latest setup.

[HavATampa]

So you are still seeing the need to run a catch can with this setup or just do it as extra insurance? What catch can do you use? Are you uisng a PCV still? I'm seeing the following part numbers to use:

12577927 (valley cover, comes with bolts & gasket) - $55.17
12594779 (hose) = $2.25

Originally Posted by vettenuts

I just did this. The driver's side valve cover rear connection gets capped. The passenger side valve cover rear connection gets capped (I updated valve covers as well do I didn't need to cap the passenger side, driver's side comes capped). Connection from throttle body to passenger side valve cover remains as it did on original setup. Tube goes from valley cover into intake on passenger side. I ran mine to a catch can then to the intake though. I can check the valley part number when I get home from work if you need it.

I was fortunate and bought mine from someone on e-bay who was selling the valley cover and valve covers as a set. He bought a crate motor and was installing in an older f-body so he used the original parts. Interesting that GM is shipping the crate motors with this latest setup.

[hotrod44_4u]

You also need 12556454 hose (RH valve cover to intake).
WILL THIS AN- HOSES FIT THE FACTORY VALVE COVERS? ALSO DO U KNOW oF AFTERMARKET CHROME VALVE COVERS W/ THE PVC PIPING BUILT IN ?? (98' ls1 Z28 SWAP to factory 04' ls6' 405hp engine) i have all the fuel rails, if any other part# for aftermarket hose other any these please sent them for my build thanks for any help