Air Suction Tube Connector Size?

[Shilo]

Does anyone know the size and the thread pitch of fitting for where the air suction tube connects to the exhaust manifold? I'm looking at getting an OBX header and it has both holes for the EGR and air suction tube, but I'm converting to EFI and won't have the air suction tube anymore. I had to cut the tube to get it off awhile back and now I have lost the fitting, so I'm going to have to find something to plug the hole if I get the OBX header.

[2oodoor]

24 mm 1.5 pitch

pm me I have a plug made already

[Shilo]

24 mm 1.5 pitch

pm me I have a plug made already

PM sent.

[POS carb]

I used the pipe to make a plug.
Basically you cut it and leave about 6". Flatten the end and make a small fold. Repeat, repeat, repeat, kind of like a tube of toothpaste :)