Third Generation F-Body Message Boards

Third Generation F-Body Message Boards (https://www.thirdgen.org/forums/)

- TPI (https://www.thirdgen.org/forums/tpi/)

- - plug thread (https://www.thirdgen.org/forums/tpi/713623-plug-thread.html)

HasseO

01-10-2015 10:21 AM

plug thread

1 Attachment(s)

Can anyone tell me what thread this is?
Marked with X in the picture. Seems to be fine thread(UNF)
Ill have to order it from the US, since everything is metrical here....

Tuned Performance

01-10-2015 10:56 AM

Re: plug thread

1/8 npt

HasseO

01-10-2015 11:00 AM

Re: plug thread

That would be 3,175mm. Its larger than that.

Tuned Performance

01-10-2015 11:05 AM

Re: plug thread

5/16 is 7.9375mm

HasseO

01-10-2015 11:33 AM

Re: plug thread

Hmmm Im checking this table
http://mdmetric.com/tech/thddat19.htm

I think u were right 1/8 npt
thanks :)

Tuned Performance

01-10-2015 12:03 PM

Re: plug thread

Np, put Teflon tape or liquefied Teflon on the threads. There is a second 1/8 npt next to the pcv passage on the drivers side of the intake.

HasseO

01-10-2015 12:19 PM

Re: plug thread

Got 2 pieces 1/8 npt on Ebay. Thanks for good info! :)

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