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Plugs for 02 sensor holes

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Old 06-07-2003, 07:39 PM
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Default Plugs for 02 sensor holes
Gutted a couple of '02 LS1 cats. What thread size and pitch are the 02 sensor holes? Does anyone make plugs for these holes? I do not want to leave sensors in these holes. Anyone help out on this? Thanks. WJ.
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Old 06-07-2003, 07:51 PM
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Default Re: Plugs for 02 sensor holes
I would like to know also.
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Old 06-07-2003, 08:03 PM
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Default Re: Plugs for 02 sensor holes
18 X 1.5 mm
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Old 06-07-2003, 09:21 PM
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Default Re: Plugs for 02 sensor holes
you can use an oil drain plug that is 18mmx 1.50, most all auto stores sell them
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Old 06-08-2003, 03:35 AM
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Default Re: Plugs for 02 sensor holes
K & N actually makes a plug for this application. I know Thunder Racing stocks them and probably some of the other sponsers.
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Old 06-08-2003, 05:15 PM
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Default Re: Plugs for 02 sensor holes
Thanks guys. I appreciate the help.... WJ.
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Old 06-08-2003, 05:16 PM
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Default Re: Plugs for 02 sensor holes
autozone has m18x1.5 oil drain plugs with copper gaskets, work great
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Old 06-09-2003, 07:23 AM
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Default Re: Plugs for 02 sensor holes
So the spark plugs I have plugging mine are not the going thing?! I never thought about the oil plug idea.
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Old 06-09-2003, 02:50 PM
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Default Re: Plugs for 02 sensor holes
Spark plugs off a late 60's Ford 289 are what I have plugging mine I think, they cost around $1 at the autoparts store...cheapest thing I've found yet.
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