knock sensor thread size

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Nov 15, 2010 | 03:57 PM
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My engine has a plug where the knock sensor goes and I need to drill it out. What size drill bit do I need?
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Nov 15, 2010 | 04:07 PM
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Re: knock sensor thread size
The drain holes are 1/4 NPT.
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Nov 15, 2010 | 04:59 PM
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Re: knock sensor thread size
Thank you sir.
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Tags 305, 350, 85, bbc, celica, hole, knock, ls3, npt, sbc, sensor, size, thread, threads, tread
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