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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; Looks like you have the short harness wire going to the front knock sensor, long wire to back? I did ...

  1. #121
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    Looks like you have the short harness wire going to the front knock sensor, long wire to back? I did mine the opposite (copying from the old harness), but I could be wrong. Anyway if you ever get a knock sensor code, you might need to switch the numbers (#1 is really #2 and vice versa).

  2. #122
    Senior Member JoshuaGrooms83's Avatar
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    i just put it in where it fit and reached without stretching the wires. No knock senor codes though so i guess i did it right lol. I tryed it the other way but the harness didnt fit right.

  3. #123
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    those parts look familiar......

  4. #124
    Senior Member JoshuaGrooms83's Avatar
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    LS6 engine toppers are working great so far

  5. #125
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    I started doing this on my '01 ws6. I am about to open up the old cover since I already took off the intake. What is the part number for the ls6 cover? Also someone mentioned they got a OPSU for about $10, where at? I am a complete beginner to all this and I am surprised I've gotten this far without much help.
    One more question, how do you know if your intake is ls1 or ls6? the number on it 12561184

  6. #126
    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by freddy_caprice View Post
    I started doing this on my '01 ws6. I am about to open up the old cover since I already took off the intake. What is the part number for the ls6 cover? Also someone mentioned they got a OPSU for about $10, where at? I am a complete beginner to all this and I am surprised I've gotten this far without much help.
    One more question, how do you know if your intake is ls1 or ls6? the number on it 12561184

    This will help with the VCT mod, part number is in second post
    LS6 valley cover in pics

    Your lucky you have a LS6 Intake

    Stock 2001-2002 F-body LS6 is 12561184.
    The Z06 LS6 is 12573572.

    The old LS1 intake with the EGR setup is 12560688.
    97-00 vette LS1 part # is 12556333



    OPSU's go for about $50, $10 sounds like a private used deal.

  7. #127
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    Quote Originally Posted by SMWS6TA View Post
    This will help with the VCT mod, part number is in second post
    LS6 valley cover in pics

    Your lucky you have a LS6 Intake

    Stock 2001-2002 F-body LS6 is 12561184.
    The Z06 LS6 is 12573572..
    Sweet Does this also mean I don't have to cut anything in the block?


    Quote Originally Posted by SMWS6TA View Post
    OPSU's go for about $50, $10 sounds like a private used deal.
    How do you know if it's broken? I already took off my intake, but not sure if I broke the OPSU in the process.

    Thanks again for the help!

  8. #128
    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by freddy_caprice View Post
    Sweet Does this also mean I don't have to cut anything in the block?
    You most likely will have to. 02's are the only ones that for sure had the LS6 block. It's not hard, take your time, and make sure to cover everything so that you don't get any metal in the engine. I had a buddy used a shop vac as I was cutting, help minimized debris.

    You can PM if you get stuck.

    Quote Originally Posted by freddy_caprice View Post
    How do you know if it's broken? I already took off my intake, but not sure if I broke the OPSU in the process.

    Thanks again for the help!
    Only way to tell is to take it of and look for cracks. I'd go ahead a switch it out as well as the knock sensors and wire harness. All 3 are over 10 yrs old and have been through 1000's of heat cycles. Think of it as one of those preventative maintenance things.

    The socket can be got for $10 at any parts store.

  9. #129
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    Quote Originally Posted by SMWS6TA View Post
    You most likely will have to. 02's are the only ones that for sure had the LS6 block. It's not hard, take your time, and make sure to cover everything so that you don't get any metal in the engine. I had a buddy used a shop vac as I was cutting, help minimized debris.

    You can PM if you get stuck.



    Only way to tell is to take it of and look for cracks. I'd go ahead a switch it out as well as the knock sensors and wire harness. All 3 are over 10 yrs old and have been through 1000's of heat cycles. Think of it as one of those preventative maintenance things.
    The socket can be got for $10 at any parts store.
    Very true! Will def PM you if I get stuck with something.

  10. #130
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    i just did the swap about a half hour ago. definitly read the ls1howto and youll have no problems

  11. #131
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    I am doing the valley cover conversion right now. Intake back on, working fuel rails right now. What about the connection at the brake booster? That hose is removed, but must we cap that off at the booster too or did I miss something?

  12. #132
    Member WS6SP33D's Avatar
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    Very nice walk through with pics. Great work op

  13. #133
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    Quote Originally Posted by 666ws6 View Post
    I am doing the valley cover conversion right now. Intake back on, working fuel rails right now. What about the connection at the brake booster? That hose is removed, but must we cap that off at the booster too or did I miss something?
    The brake booster hose shouldn't have anything different about it. It connects between the intake manifold and the booster. Are you talking about a different hose?

  14. #134
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    Quote Originally Posted by Cutlass View Post
    The brake booster hose shouldn't have anything different about it. It connects between the intake manifold and the booster. Are you talking about a different hose?
    I haven't completed all the reconnects yet, I just didn't see that connection. Thanks for clarifying.

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    Noob here reviving this, would an open element breather on the driver side valve cover where the pcv was be a good or bad thing? This is of course with the LS6 intake and valley mod.

  16. #136
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    Quote Originally Posted by hmartin View Post
    Noob here reviving this, would an open element breather on the driver side valve cover where the pcv was be a good or bad thing? This is of course with the LS6 intake and valley mod.
    it would work fine

  17. #137
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    ls6 intake gm part # 88894339
    gmpartsdirect.com
    or your local chevy dealer

  18. #138
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    ^^^ LS6 intakes on ebay all day long !!!

  19. #139
    Senior Member JoshuaGrooms83's Avatar
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    pretty much, everyone starting to jump on old Fast intakes so they are getting rid of their LS6 intakes and with 4th gens starting to take a back seat to the 5th gen Maro and Vettes, parts are starting popup all over the place for us again

  20. #140
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    I know that I have not been on this site for quite a while, but I have been kina busy. My question is: 12577927 cover, 12594779 hose, 12562267OPSU, are these all of the parts I will need for the conversion on my '02 B4C car? I am preparing for this task. Thanks, Andy

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