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Thread: o2 thread size

  1. #1
    LTX Master


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    Default o2 thread size

    ok it looks like i need to tap my headers for the 02 sensors. i think the threads are screwd up. anyone know the size? i thought it was 11/16 by 16.
    born with LTX in his blood!

  2. #2
    LTX Regular


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    Metric 18MM x 1.5

    94 Camaro: 10.57@127, AI H/C, stock bottom, 150 n20, TH400, 8.8 rear (11.49@119 n/a T56)
    99 Z28 1SC Stripper: 5.3, S480, Th400, MWC 9"

  3. #3
    LTX Master


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    thanks!
    born with LTX in his blood!

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    If your having a hard time finding the tap. At autozone they sell a double sided tap for rethreading sparkplugs. The one end is 14mm and the larger end is the 18mm one you need.
    So far 10.576 @ 128.64 on a 1.563 short time. N/A.
    8.957 @ 151.60 on a 1.349 60' time
    THE FIRST 8 SECOND NITROUS POWERED LT1

  5. #5
    LTX Master


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    Quote Originally Posted by jakesz28 View Post
    If your having a hard time finding the tap. At autozone they sell a double sided tap for rethreading sparkplugs. The one end is 14mm and the larger end is the 18mm one you need.

    exactly the one i got! 6 bucks i think. thanks guys
    born with LTX in his blood!

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