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2nd gen exhaust manifold flipping

Discussion in '2nd Gen 4Runners (1990-1995)' started by Beardedmechanic, May 30, 2018.

  1. May 30, 2018 at 9:16 AM
    #1
    Beardedmechanic

    Beardedmechanic [OP] New Member

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    Ok, firstly I want to say thanks for allowing me into the group. Secondly im going crazy with an idea I have, and in order to go through with my build I need exhaust that exits forward towards the radiator. I have 1995 sr5 with a 3.0 v6. Does anyone know if the manifolds can be flipped on these trucks?
     
  2. May 30, 2018 at 10:05 AM
    #2
    jester243

    jester243 rabble rabble rabble

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    not sure on the manifold but what are you building, sounds interesting
     
  3. May 30, 2018 at 10:10 AM
    #3
    Beardedmechanic

    Beardedmechanic [OP] New Member

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    My plans are simply a built long block and twins, with my back I'll never be able to do proper wheeling so why not go for gobs of power and dirt road hooliganism
     
    jester243 likes this.
  4. May 30, 2018 at 10:34 AM
    #4
    Kyle11863

    Kyle11863 King of the BS

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    Big Bear California
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    Doug Thorley long tube headers and lots of mud
    To answer your question, probably not. If memory serves, the manifolds are symmetrical but the issue is that the driver side manifold has two ports, one for the passenger side exhaust to enter the driver side (stupid wrap around design that is actually what causes the head gaskets to blow) and then another hole below where the two side exit and go down the rest of the exhaust. If flipped, the second hole will be flipped upside down. Additionally you would probably have to do some kind of egr delete as well to make it work since the ports would be moved. After you solve those problems you would need to figure out how to not hit all the accessories on the front of the block as the alternator and ps pump are right in line with that.

    I'm sick right now, but whenever I get up, I'll take some pics for you of the manifolds since mine are no longer in the truck so you can see what I'm talking about
     
  5. May 30, 2018 at 10:36 AM
    #5
    Beardedmechanic

    Beardedmechanic [OP] New Member

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    Thanks that would be huge, and as far as accessory locations I'll move those and well I want egr gone anyhow lol. Was thinking id need a pair of passenger side manifolds for sure
     
  6. May 30, 2018 at 10:42 AM
    #6
    Kyle11863

    Kyle11863 King of the BS

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    Doug Thorley long tube headers and lots of mud
    Dual passengers might work. Never really considered that when I was looking at mine. Twin turbo, that'll be interesting. I'm assuming you're going to cut the hood since there is no room under the hood?
     
  7. May 30, 2018 at 10:58 AM
    #7
    Beardedmechanic

    Beardedmechanic [OP] New Member

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    I plan to make as much room as possible under the hood and cut where needed, moving all the electronics I can to in the cabin, eliminating ac most likely and removing inner fenders, also considering a 2 inch body lift to give me a touch more room to play as well
     
  8. May 30, 2018 at 11:04 AM
    #8
    Kyle11863

    Kyle11863 King of the BS

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    Doug Thorley long tube headers and lots of mud
    That'll be an interesting build. Where ya from? Kinda curious to see this in person haha
     
  9. May 30, 2018 at 11:09 AM
    #9
    Beardedmechanic

    Beardedmechanic [OP] New Member

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    I am in minnesota unfortunately lol, i will definitely be posting up pictures of progress and hopefully be able to do a write up on everything i do in case some other poor soul decides to follow my lead
     
    jester243 likes this.

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