o2 thread size

ok it looks like i need to tap my headers for the 02 sensors. i think the threads are screwd up. anyone know the size? i thought it was 11/16 by 16.

Metric 18MM x 1.5

thanks!

If your having a hard time finding the tap. At autozone they sell a double sided tap for rethreading sparkplugs. The one end is 14mm and the larger end is the 18mm one you need.

Quote:

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Originally Posted by jakesz28

If your having a hard time finding the tap. At autozone they sell a double sided tap for rethreading sparkplugs. The one end is 14mm and the larger end is the 18mm one you need.

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exactly the one i got! 6 bucks i think. thanks guys