LS1 to LS6 PCV conversion
Thread Starter
Joined: Aug 2002
Posts: 4,578
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From: Kissimmee, FL
LS1 to LS6 PCV conversion Going to order the LS6 valley cover through SDPC, any other parts that I need?
If so, what are the part numbers? This cover will still be used with an LS1 intake.
https://sdparts.com/details/gm-facto...parts/12577927
If so, what are the part numbers? This cover will still be used with an LS1 intake.
https://sdparts.com/details/gm-facto...parts/12577927
Thread Starter
Joined: Aug 2002
Posts: 4,578
Likes: 49
From: Kissimmee, FL
Parts list: valve cover plug (12568011), valley cover to intake hose (12594779) and valley cover with built in PCV - aka: 2004 LS6 PCV (12577927)
The Valve cover plug, are 2 in the bag or just 1?
Thread Starter
Joined: Aug 2002
Posts: 4,578
Likes: 49
From: Kissimmee, FL
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Just to add to this and try to get confirmation... which blocks require grinding to get the Valley Cover to fit? I know my aluminum '98 required grinding. Anybody else care to chime in?
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ALL LS1 blocks require the cutting. It's really not a big deal -- just be sure to have everything covered up so as not to get metal dust/shavings in the valley -- or all over the engine bay!
I would also highly suggest new manifold gaskets (my preference is ACDelco, but I was in a pinch and picked up Fel-Pro from Advanced when I was in the middle of doing this mod).
I would also highly suggest new manifold gaskets (my preference is ACDelco, but I was in a pinch and picked up Fel-Pro from Advanced when I was in the middle of doing this mod).
you could turn out to be lucky like i was and get an LS6 block (if you have an '02 model), which does not require any cutting at all! 
click me!
got the parts ordered, they should be here by Friday, and installed this coming weekend.
click me!
got the parts ordered, they should be here by Friday, and installed this coming weekend.
Are the ls1 and ls6 motors more likely to burning oil as opposed to a 4.8 truck motor?
The reason I ask, is I will be removing my 4.8 and installing a 5.7 ls1 shortblock with ls6 heads and intake and a custom cam. I currently dont have an issue with burning oil on my 4.8. My 5.7 block is at the machine shop right now, so Im thinking I should have him cut the block before it gets washed.
I guess my questions are:
Must you use this ls6 valley cover when using an ls6 intake?
If not, I assume I might suck more oil through the valve covers (ls1 pcv). Will a simple catch can suffice?
The reason I ask, is I will be removing my 4.8 and installing a 5.7 ls1 shortblock with ls6 heads and intake and a custom cam. I currently dont have an issue with burning oil on my 4.8. My 5.7 block is at the machine shop right now, so Im thinking I should have him cut the block before it gets washed.
I guess my questions are:
Must you use this ls6 valley cover when using an ls6 intake?
If not, I assume I might suck more oil through the valve covers (ls1 pcv). Will a simple catch can suffice?
Thread Starter
Joined: Aug 2002
Posts: 4,578
Likes: 49
From: Kissimmee, FL
You don't need the LS6 valley cover to run an ls6 intake.
I might suck more oil through the LS1 PCV and yes you can also run a catch can to alleviate the problem.
I might suck more oil through the LS1 PCV and yes you can also run a catch can to alleviate the problem.
