What size threads EGR tube/manifold

[jacaraco]

What are the thread sizes on the adapter between the EGR tube and the exhaust manifold? I think the EGR tube has a M22 x 1.5 pitch. I searched and can't find it.

Thanks!
Jim

[Pat_in_L.A.]

I just measured a NOS exhaust manifold adapter. The tube side is 1.5 pitch. When measuring the fitting on the tube I got 21.93 mm, 1.5 pitch.

[NavySVO]

OK, reviving an older thread to ask an additional question.....

I am tossing around the idea of getting a Rod's header and a new EGR tube from Forced4, but I want to have a machine shop cut me a tube adapter out of stainless.
Can anyone give me the overall dimmentions for the adapter fitting?