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knock sensor thread size

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Old

Nov 15, 2010 | 03:57 PM

#1

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Joined: Nov 2009

Posts: 453

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From: Saint Louis, MO

Car: 86 Firebird LG4

Engine: 350

Transmission: 700r4

Axle/Gears: 3.23 limited slip

knock sensor thread size

My engine has a plug where the knock sensor goes and I need to drill it out. What size drill bit do I need?

Old

Nov 15, 2010 | 04:07 PM

#2

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Joined: Jan 2000

Posts: 20,981

Likes: 11

From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Re: knock sensor thread size

The drain holes are 1/4 NPT.

Old

Nov 15, 2010 | 04:59 PM

#3

Thread Starter

Member

iTrader: (3)

Joined: Nov 2009

Posts: 453

Likes: 0

From: Saint Louis, MO

Car: 86 Firebird LG4

Engine: 350

Transmission: 700r4

Axle/Gears: 3.23 limited slip

Re: knock sensor thread size

Thank you sir.

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305, 350, 85, bbc, celica, hole, knock, ls3, npt, sbc, sensor, size, thread, threads, tread

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