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TR7IX with washer ok to use??

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Old 06-05-2021, 09:59 AM
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Default TR7IX with washer ok to use??
I have read of guys using the tr7ix on boosted ls motors. I thought it was a big no no for plugs with washers? I got some and they sure do have the washer on them and not tapered seat... ok to use them?
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Old 06-05-2021, 12:32 PM
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I’ve always used tr7ix plugs. I’m making 830/869 right now on a 5.3, my tuner loves them. I’m always spraying M1
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Old 06-06-2021, 09:25 AM
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Interesting. NGK says the TR7IX is tapered seat.

https://www.ngk.com/ngk-3690-tr7ix-i...-ix-spark-plug

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Old 06-06-2021, 11:41 PM
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Originally Posted by RonSSNova
Interesting. NGK says the TR7IX is tapered seat.

https://www.ngk.com/ngk-3690-tr7ix-i...-ix-spark-plug
Doh! I got them confused with some other plugs I have and indeed they are tapered. Oh man I feel so silly lol. Here I will do it voluntarily lol
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