LS6 Valley Pan Question
#1
LS6 Valley Pan Question
Ok i just received a new LS6 valley cover or so I thought. I have now learned that GM actually has 2 versions of this valley cover, or so I have heard. Can someone that actually know for sure the difference between the 2please chime in. The P/N that I was told to order is 12575742 Below is a picture of the one that I received. Is this the correct one or not, if not please let me know what the correct one is, along with any other parts that I may need to purchase to make it work correctly and look correctly.
Thanks,
Eric
Thanks,
Eric
#3
TECH Resident
iTrader: (17)
Yep, that is a stock LS1 replacement. What you want is the 04+ LS6 version which is the part number mentioned before. Scoggin Dickey has them for just under $100.
https://sdparts.com/details/gm-facto...parts/12577927
It will look like this:
https://sdparts.com/details/gm-facto...parts/12577927
It will look like this:
#7
TECH Resident
iTrader: (17)
That link to SDPC should come with everything you need to make the swap other than a small piece of 3/8" SAE30R6 hose which you can pick up at a local auto store. The only obstacle if you have an LS1 block would be that you need to cut a small piece out of the valley to make it fit.
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#8
TECH Addict
iTrader: (88)
That link to SDPC should come with everything you need to make the swap other than a small piece of 3/8" SAE30R6 hose which you can pick up at a local auto store. The only obstacle if you have an LS1 block would be that you need to cut a small piece out of the valley to make it fit.
#12
TECH Senior Member
you will need to plug the PCV outlets on the rear of your valve covers (and remove the plumbing);
you will need the short u-shaped hose to go from LS6 valley cover outlet to intake manifold PCV inlet;
you still need the short hose from the throttle body to the passenger side valve cover.
#18
Hmm thats weird. I dont have a pcv valve on mine anymore. Just whats under the valley cover. And the little tube with the red cap that sticks out is routed into the manifold.
#19
TECH Apprentice
iTrader: (3)
Hose routing is the same. You are just running a pcv system with zero restriction basically using an early LS6 valley without an external pcv valve inline with your hose from valley>intake. Getting oil inside your intake still? Try a PCV in line. If not you can just leave it.
#20
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This is correct, it will not eliminate it but it will help a bunch. Also, buy the GM U-shaped hose, it is a super tight bend and trying to make a straight hose work will not look near as good as their molded piece. Trust me I tried.