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Intake coupler

This is a discussion on Intake coupler within the External Engine forums, part of the LSx Technical Help Section category; ok guys i need to fab up a intake coupler i recently swapped a LS3 into my Trans Am and ...

  1. #1
    Member 2000dreambird's Avatar
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    00 trans am,SLP,Ws6

    Intake coupler

    ok guys i need to fab up a intake coupler i recently swapped a LS3 into my Trans Am and now the smooth bellow doesnt fit right, i need a silicone coupler that is 4"IDx6.5"L and a 30 degree bend. i have serched all over the internet and the only ones i seem to find are 45-90 degree and there always a inch to short.

    HELP!!!!

  2. #2
    Moderator 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

    Why don't you just use one like the stock bellows which would be an accordion style. Then you can bend it how you want.

  3. #3
    None Shall Pass Knight's Avatar
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    99 WS.6 - Modified

    ^This. Or check your local home improvement store for the rubber plumbing connectors. Many do that because it's just as effective and cheaper.

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    Member 2000dreambird's Avatar
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    I would prefer the smooth style. An I have looked at home depot there rubber couplers are only 4" long I need atleast 6" (that's what she said). Plus I have been told the HD rubber ones can collapse at WOT

  5. #5
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    2000 Grand Prix GTP
    2000 Trans Am WS6 M6

    Silicone Hose

    I used this on my H/C/I LS1, and it worked great. To get the angle right, I cut the part that connects to the throttle body at an angle, so it pointed upwards towards the lid.


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