Thread: L26 solid upper intake swap?

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  1. #1 L26 solid upper intake swap? 
    GTP Level Member apierce1289's Avatar
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    Okay I bought a solid upper intake manifold to replace my plastic one. The only question is which gasket do I get? Is it the l36 gasket or what? Advanced auto has a plastic and a metal gasket available. I'm really not sure which gasket I'm supposed to get.

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    Last edited by BillBoost37; 04-20-2012 at 05:31 AM. Reason: post was wrong, local dude
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    I live here. MoarkatsINmuhtrailer's Avatar
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    It's the same plenum gasket between an l26 and l36
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  3. #3 Re: L32 solid upper intake swap? 
    GT Level Member RyanL's Avatar
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    get the metal gasket. the platic ones tend to melt and **** up way before the metal ones!
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  4. #4 Re: L32 solid upper intake swap? 
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    There is no metal UIM gasket for an L26.

    an L32 UIM is a gen V M90.... which had a metal gasket.
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    GTP Level Member apierce1289's Avatar
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    Quote Originally Posted by 99pgpgt View Post
    It's the same plenum gasket between an l26 and l36
    The guy at advanced said the 2008 upper plenum gasket (which is metal) looks exactly the same as the one for my plastic plenum. What do? If they are indeed the same thing I would most likely think I should go with the metal gasket.

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  6. #6 Re: L32 solid upper intake swap? 
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    Did he show you the gaskets?

    They're ever so slightly different, but it wont matter.

    Pick the cheaper one.
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  7. #7 Re: L32 solid upper intake swap? 
    Turbo is the way to go. BillBoost37's Avatar
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    And...for god's sake.. order online with the discount codes to save money. Ccabin saves $40 on 100
    I drink..so consider that when reading my posts.

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  8. #8 Re: L26 solid upper intake swap? 
    The Blue One blueguy's Avatar
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    Wasn't there already a big thread about this swap?

    Oh well.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  9. #9 Re: L26 solid upper intake swap? 
    GT Level Member RyanL's Avatar
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    Is there any power gain from the plastic to alumin upper intake manifold?
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  10. #10  
    GTP Level Member apierce1289's Avatar
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    Quote Originally Posted by RyanL View Post
    Is there any power gain from the plastic to alumin upper intake manifold?
    Not that I know of I'm doing it for piece of mind.

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  11. #11  
    GTP Level Member apierce1289's Avatar
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    Are there any other modifications that need to be made when installing this upper plenum?

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  12. #12 Re: L26 solid upper intake swap? 
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  13. #13 Re: L26 solid upper intake swap? 
    The Blue One blueguy's Avatar
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    Hence just deleting the EGR.

    Makes life tons easier...just rip the stovepipe out of the LIM.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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    GTP Level Member apierce1289's Avatar
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    Any special way to delete the stove pipe and egr? Do headers need to come off? Any tools that would make life easier?

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  15. #15  
    GTP Level Member apierce1289's Avatar
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    Any help on this^^^^^

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  16. #16 Re: L26 solid upper intake swap? 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by apierce1289 View Post
    Any special way to delete the stove pipe and egr? Do headers need to come off? Any tools that would make life easier?
    When the UIM is off, you just yank out the stovepipe with a set of pliers or vice grips...whatever you happen to have.

    EGR...well, it's a 13mm (I think), under the throttle body...remove that bolt and slide that portion of the gold EGR tube out...then take a saw or grinder...and cut the end of the tube off so you can remove the bracket that bolted it to the LIM. Take that bracket and RTV a penny to the back of it and let it sit and seal...then bolt it back to the LIM...do the same for the rear manifold...its a small bolt, I think a tiny little thing, smaller than a 10mm...think 8 or 9...the car will set a SES for not having an EGR, but you can get a tuner to remove the code.

    And no special tools, the bolt on the backside of the rear manifold is just in general a PITA...so you might need some PB Blaster and a 1/4" drive ratchet with a small three inch ish extension.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  17. #17  
    GTP Level Member apierce1289's Avatar
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    I'm trying to figure out what modifications need to be done to the upper intake manifold. But I'm not sure what exactly needs to be blocked off. I do know that I need to make a vacuum line entrance on the metal tube going towards the throttle body. A lot of the forums that I've looked on have outdated information and I'm not too sure what I should go by. I really need the help from the community on this one. I even asked Billboost and he wasn't really sure.

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  18. #18 Re: L26 solid upper intake swap? 
    GTP Level Member Rico's Avatar
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    EGR tube bolts to the lower intake manifold.
    Do a search. Plenty of info here.
    It's a CUMMINS Dodge not a Dodge Cummins
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  19. #19  
    GTP Level Member apierce1289's Avatar
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    Quote Originally Posted by Rico View Post
    EGR tube bolts to the lower intake manifold.
    Do a search. Plenty of info here.
    You didn't read everything did you? I'm getting mixed info on this. Can you guys paste any links you find cause my searches are just confusing me. And to clarify the only part I'm stuck on is what modifications need to be made to the solid upper intake, I know about the egr.

    Sent from my XT912 using Tapatalk 2
    Gremlins always seem to show up in pairs, or groups of three with our cars...
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  20. #20 Re: L26 solid upper intake swap? 
    GTP Level Member Rico's Avatar
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    Sorry, but I didn't think that any modifications were mentioned about the UIM...just which gasket to use.
    It's a CUMMINS Dodge not a Dodge Cummins
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