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    Results 1 to 11 of 11
    1. #1
      Join Date
      Nov 2018
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      Winston Salem, NC
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      L99 friction ring/ seal Question

      Pulled the balancer on an L99 crate engine today. This ring/ seal looking thing came out with it. It fits perfect on the end of the balancer snout.
      What is it and what does it do?
      I'm installing a Holley mid mount setup which uses a different balancer... Would you use this thing or leave it off?
      Thoughts???



    2. #2
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      PicsName:  20210525_201200.jpeg
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    3. #3
      Join Date
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      The L99 had VVT and AFM. That looks like a spacer to accommodate the deeper front cover. Post a picture of the front cover.

      Andrew
      1970 GTO Version 2.0
      1967 Cougar build
      GM High-Tech Performance feature
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      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    4. #4
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      Nov 2018
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      Quote Originally Posted by andrewb70 View Post
      The L99 had VVT and AFM. That looks like a spacer to accommodate the deeper front cover. Post a picture of the front cover.

      Andrew
      Yes, it had the VVT and AFM. It had the cover with the phasers thing. I did the VVT/AFM delete new LS3 front cover, valley pan, 3 bolt cam etc.

    5. #5
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      Nov 2018
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      Old cover and vpName:  20210525_223750.jpeg
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    6. #6
      Join Date
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      Then you can just install the balancer that came with the mid mount.
      1970 GTO Version 2.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    7. #7
      Join Date
      Nov 2018
      Location
      Winston Salem, NC
      Posts
      93
      Quote Originally Posted by andrewb70 View Post
      Then you can just install the balancer that came with the mid mount.
      That makes sense.
      Still kinda curious on its purpose though.
      Here's a link to what I'm talking about.
      My first time seeing this on an LS engine...
      https://www.speedinc.com/crankshaft-...on-washer.html

    8. #8
      Join Date
      Nov 2018
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      Winston Salem, NC
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      Looks like a provision there for a keyed crank also.

    9. #9
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      Quote Originally Posted by KnightmareZ View Post
      Looks like a provision there for a keyed crank also.
      It's a multi purpose spacer.
      1970 GTO Version 2.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @projectgattago
      Dr. EFI
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    10. #10
      Join Date
      Nov 2018
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      Quote Originally Posted by andrewb70 View Post
      It's a multi purpose spacer.
      I'll measure it's thickness tomorrow.
      I just think with the diamond impregnated material the design team probably was factoring more than spacing alone.
      Interesting, none the less.

    11. #11
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      Nov 2018
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      Winston Salem, NC
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      .0015