egt thread size

[b00st33d]

I recently bought a exhaust manifold with an egt hole already tapped on it. I am putting my car back together and I need to plug this hole. Could someone please let me know what the size of it so i can buy something to plug it? thank you

 

[EMX5636]

I think GReddy is a weird size. But most "cheaper" ones like autometer etc are 1/8NPT. Try to Get a Steel fitting though. I've had the regular brass ones seize in there.

 

[Spyke169]

They will all seize in there over time because they are dissimilar metals, so unless it is a bung made of the same material as the manifold is it will over time seize in there.

 

[G]

I've never seen the brass ones seize but rather just strip since brass is so soft.