piman said:
I'm surprised, I would have expected U.N.C. for the manifold end of the stud?
Me too, but I vaguely recall being surprised when I found fine threads in a GT6 manifold. And I'm just reporting what I found in the documentation, I don't actually have a TR6 to check. (Had a TR6 motor but gave it away.) The Stag studs are a different P/N and of course it's manifold is totally different, so that's no help.
So come on, all you TR6 owners out there. Pile in here and tell me I'm wrong !