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Thread: LS6 valley cover in pics
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10-04-2010, 07:26 AM #41
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you cant really see it with the intake on......but the intake does not fully seat against the head where the bolts are....so crap accumulates right in the bolt wells as you can see in the pics
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10-05-2010, 06:40 AM #42
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Navy Blue Metallic- 98 T/A, 00 FBVert, 78T/A
FYI OP, you could have gotten the LS6 coolant bypass kit for cheaper $56. I can't post because its not a sponsor but anyone else can PM me is interested. The kit includes 2 block off plugs for the rear.
Great job Op on the thread. I will use it as a guide when I do mine. Did you use a Dremel to make the cuts? Nice job in pointing out the knock sensors.
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10-05-2010, 07:37 AM #43
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blacker than wesleysnipes- 98' trans am
when i converted to a ls6 valley cover i used a dremel. good job op looks good
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10-05-2010, 08:56 AM #44
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i used a dremel with those quickchange cut off wheels.......i got my steam tubes from scoggins for 30 something(each).......i wanted flow on the back of the heads so i did not use block offs
Last edited by sjsingle1; 10-05-2010 at 09:05 AM.
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10-18-2010, 04:56 PM #45
damn that is one clean motor. ( on the outside not under the intake )
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10-18-2010, 07:44 PM #46
so guess im out of the loop but why did you need to cut into the block to get the valley cover to fit?
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10-18-2010, 08:16 PM #47
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the bottom plastic part on the cover hits the boss on the block......grind it down.......and it fits
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10-20-2010, 04:26 PM #48
so this must be only for the older ls1 cars that didnt have the ls6 block or intake than. i just dropped in a crate ls6 into my 01 ws6 and it looked like the valley pan wouldnt clear the oil pressure sensor so i put the stock ls1 one on.....
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10-20-2010, 06:45 PM #49
Good job. Fwiw I have the LS6 valley, intake was getting alot of oil in it. Still got just as much oil in it with the LS6 valley. Was a useless mod for me. I run a catch can off the Valley now and the intake stays bone dry.
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10-21-2010, 12:06 PM #50
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i did this mod purely to replace the crappy PCV hoses....since those were causing a vacum leak i am sure i was not getting any oil into the intake
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10-21-2010, 03:29 PM #51
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10-21-2010, 04:54 PM #52
I would put a pcv or a catch can and PCV on there, full vacuum even with the LS6 valley cover will draw more fumes and oil than you want into the intake. What did you use to block off the ports on the valve covers?
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10-21-2010, 05:00 PM #53
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on the rear drv cover i used the GM block off........rear pass port was capped off....front pass port still goes to the TB......i thought the whole idea of the new style cover was to get rid of the PCV cannister in the loop?
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10-22-2010, 11:19 AM #54
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10-22-2010, 02:19 PM #55
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that does not explain the differences between the old style cover....which used a PCV valve in the loop.......and the new style.........which does not
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10-22-2010, 04:32 PM #56
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10-22-2010, 05:44 PM #57
The re-worked PCV system for trucks etc. used a 2.5mm orifice in the PCV rather than the check ball and spring of the old system. Many have had good results using this PCV in place of the one normally in use. On the 2004+ LS1s the 2.5mm orifice is built into the the outlet hose fitting on the cover. If your cover has this feature you're fine, if not, use the newer model orifice PCV and you'll be good to go.
Here's a link showing a good picture of the different valves:
http://http://www.gm-trucks.com/foru...&type=&id=2598Last edited by DaddySS; 10-22-2010 at 05:57 PM.
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10-22-2010, 06:38 PM #58
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linkee not workin
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10-22-2010, 06:43 PM #59
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i copied n pasted .........got it to work.....if you look at the pics of the underside of the new style cover.......it has holes in the plastic......i assume to take the place of the hole in a PVC canister.....that fixed hole PCV is mentioned as a replacement in other articles to reduce oil in the intake
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10-22-2010, 10:14 PM #60
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