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  1. #1
    spd5535's Avatar
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    Size of Air Intake On Throttle Body - 155 N/A

    Would somebody be able to measure the outer diameter on the air intake side on the throttle body of a 155 N/A engine for me? I'm just wondering if it's 3" or 4" and since my ride is in storage I have no way of finding out. I need to find out so I can purchase the right size silicone coupling for it.

    Thanks.......


  2. #2
    Doo It Till It Hurts! holdnon72's Avatar
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    I can tell you without looking it's 3" Thats why everybody wants to make it into a 4"

    I can't look at mine either it's all wrapped up

  3. #3
    EZ Dock of Long Island Shibby1485's Avatar
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    it's less than 3"

    2 3/4 silicone hose/coupler will work well

  4. #4
    Jeepster's Avatar
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    Just to give you an idea...the silicone sleeves that i bought to make my external I/C plumbing are 2.5 inch and they do fit on that....so it is definitely not 3 inch and more....most probably 2.5 to 2.75 inch like Shibby said.

  5. #5
    EZ Dock of Long Island Shibby1485's Avatar
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    it's like 2 5/8 or something... so u can go up or down from that and the clamp does the rest, lol

  6. #6
    Doo It Till It Hurts! holdnon72's Avatar
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    Thanks for correcting me guys....

  7. #7
    spd5535's Avatar
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    Thanks guys....

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