Thread: L26 UIM gasket?

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  1. #1 L26 UIM gasket? 
    GXP Level Member txslow6's Avatar
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    I will be doing the L26 intake manifold swap soon. I can find the lower gasket all day. What unicorn do I need to speak with to find the upper gasket? The vendors only seem to carry the lower. And Autozone doesn't carry it either. Help
    85 Corvette
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  2. #2 Re: L26 UIM gasket? 
    The Blue One blueguy's Avatar
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    MS96691


    or


    MS16206



    That is at AZ because I just bought mine the other day for the silver car
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  3. #3 Re: L26 UIM gasket? 
    GXP Level Member darkhorizon's Avatar
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    The upper gasket is re-used 99/100 times. I would only replace if yours is torn up or missing.
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  4. #4 Re: L26 UIM gasket? 
    GXP Level Member txslow6's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    MS96691


    or


    MS16206



    That is at AZ because I just bought mine the other day for the silver car
    Hmmm. I used a 2007 GP on their iPhone app. I'll try a older year.

    Quote Originally Posted by darkhorizon View Post
    The upper gasket is re-used 99/100 times. I would only replace if yours is torn up or missing.
    Good to know for future reference when I do my L26 swap.
    85 Corvette
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  5. #5 Re: L26 UIM gasket? 
    Turbo is the way to go. BillBoost37's Avatar
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    Likely it's called...plenum
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  6. #6 Re: L26 UIM gasket? 
    GXP Level Member txslow6's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Likely it's called...plenum
    That's it thanks
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  7. #7 Re: L26 UIM gasket? 
    Turbo is the way to go. BillBoost37's Avatar
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    Probably wouldn't believe me if I said "It's my first time", would you?
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  8. #8 Re: L26 UIM gasket? 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by txslow6 View Post
    Good to know for future reference when I do my L26 swap.
    Yup, I searched for an '04
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  9. #9 Re: L26 UIM gasket? 
    GXP Level Member txslow6's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Probably wouldn't believe me if I said "It's my first time", would you?
    I honestly don't know why I didn't search for plenum. LOL after multiple trips in years past getting a S/C gasket. That's what I had to ask for at the parts store. You would think I would have remembered.
    85 Corvette
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  10. #10 Re: L26 UIM gasket? 
    I live here. MoarkatsINmuhtrailer's Avatar
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    the fel pro number we have at advance is ms95812
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  11. #11 Re: L26 UIM gasket? 
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    I'm not sure if this is the thread to ask, or if someone can point me in the right direction... but... I am looking at swapping my defective (leaking/warped) L36 upper IM for a better one. Is there a benefit in going to an L26 upper, and/or is it more costly, than just doing the $130 Dorman? Less costly? Does it require more work/parts?

    Please help if you can. I've been trying to figure out the best route to take, and the car is down, and need it back up ASAP.

    I'm also thinking of doing the Lower IM Gaskets at the same time, and possible the HV3.

    Thank you in advance. (FYI, if you didn't figure it out, I have a '99 3.8 GT)

    Edit: I can get an L26 upper IM for $50 at the junk yard. Base on that, please.
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