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LS6 valley cover in pics

This is a discussion on LS6 valley cover in pics within the External Engine forums, part of the LSx Technical Help Section category; Great pics to go with a great job. As with any kind of modification, the more pictures the better. Thanks ...

  1. #81
    We'll be back... GatorSS's Avatar
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    Light Pewter Metallic
    2000 Camaro SS M6

    Great pics to go with a great job. As with any kind of modification, the more pictures the better. Thanks all.

  2. #82
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    the PN for the OPSU is 12562267.......paid 77$ at the dealer......waaaay cheaper at rock auto

  3. #83
    🤔 11s. blackbirdbrain89's Avatar
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    black trans am
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    i made mine.. i like most of us broke my opsu off... so i took a older on that had a full metal body and made a 3/8s pipe to the stock hole in the block... 15x1.5 i think dont hold me to that but i havent had any issues and if i do break it back off its only afew bucks to get one off an older gm...
    btw a 3 wire and a one wire have that one wire that works for the same the other 2 just trun on a oil light if thats all the car have stock..

  4. #84
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Added to the Gen Help Tech Stickies!!...should have done this along time ago

  5. #85
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    that will teach ls1howto a thing or 2

  6. #86
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    Quote Originally Posted by sjsingle1 View Post
    BTW the hose is PN : 12594779
    that the hose from the valley to the TB in case ya missed it

  7. #87
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    BTW you can re-use the ls1 coolant pipes if you're keeping the ls1 intake. You just have to do some minor bending on the the front, to bypass the pipe out of the ls6 valley cover.

    Another tip: it's easy to crush/break the wire from the #2 knock sensor when you re-install the intake. (Ask me how I know ), due to the bump on the ls6 cover that's not there on the ls1 cover. You'll then get a knock sensor low voltage code, and have to take it apart all over again. So you'll need to be careful about wire routing.

    And yet another tip: don't glue the knock sensor covers onto the vc with sealant like I did, it's about impossible to get them out again.

    The holes in the new style vc are supposed to replace the pcv valve, but if you have the old style ls6 cover you can just keep your external valve in the hose loop (I sort of prefer that option).

  8. #88
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    i switched to the LS6 coolant tubes for a future fast intake......i think my KS wiring harness was already screwed up when i took it off......got a new one for my soon to be LS6 intake install

  9. #89
    Moderator Cutlass's Avatar
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    Thumbs up

    Quote Originally Posted by morpho View Post
    BTW you can re-use the ls1 coolant pipes if you're keeping the ls1 intake. You just have to do some minor bending on the the front, to bypass the pipe out of the ls6 valley cover.

    Another tip: it's easy to crush/break the wire from the #2 knock sensor when you re-install the intake. (Ask me how I know ), due to the bump on the ls6 cover that's not there on the ls1 cover. You'll then get a knock sensor low voltage code, and have to take it apart all over again. So you'll need to be careful about wire routing.

    And yet another tip: don't glue the knock sensor covers onto the vc with sealant like I did, it's about impossible to get them out again.

    The holes in the new style vc are supposed to replace the pcv valve, but if you have the old style ls6 cover you can just keep your external valve in the hose loop (I sort of prefer that option).
    +1 good info

  10. #90
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    the front KS wire was pinched when i took off my manifold.....that hump on the intake did it......no hump on the LS6 intake

  11. #91
    Spaz is My Mentor SMWS6TA's Avatar
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    One more thing to add to this thread that I learned.

    Knock Sensor Wire Harness (KSWH) - you need to be careful on its placement. When I did the LS6 Intake install some how my KSWH was moved durning the seating and it got pinched causing the KSWH to fail. As you can see in the picture below this is not where it should be seating. After replacing the harness I used some high temp tape to hold it in place.




    FINISH PRODUCT


    Last edited by SMWS6TA; 02-11-2011 at 01:04 PM.

  12. #92
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    cute catch can

  13. #93
    Spaz is My Mentor SMWS6TA's Avatar
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    yeah it's shiny

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    Sticky Worthy

  15. #95
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    i likez stickeez

  16. #96
    Senior Member JoshuaGrooms83's Avatar
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    Ok so if im doing an LS6 intake manifold on my 98 shoud I switch to a LS6 valley cover while im at it? Is it really needed? already go the LS6 steam tubes and rear block offs on the way, As well as EGR/AIR block offs. Got a catch can but not installed yet.

  17. #97
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    it will save you the hassle of messin with the stock PCV crap in the future

  18. #98
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    If you don't mind dremeling the block it's worth it.
    Something I found though - I think the holes for the knock sensors might be slightly bigger in the ls6 vc. When I took the rubber covers out of my ls1 vc they were a tight fit, when I put them in the ls6 vc they were loose. I got a new knock sensor harness, which had some differences from my old one (from 2000), and the covers fit tightly in the ls6 vc. I threw away the ls1 vc too soon so I couldn't compare them directly.

  19. #99
    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
    98' trans am

    i think it might just be the older rubber ..as soon as you take them out..they dont expand a little like newer ones would

  20. #100
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    my new rubber was nice n tite............the old rubber was almost dry rotted

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