manifold to headpipe studs

[wengr]

Hello, does anyone know the size and thead of the exhaust manifold to headpipe studs? the part that threads into the manifold is what I need. this is a 4 \ 2 manifold from an 83. I want to try and find replacements but I do'nt have the broken studs out yet so I can't check with a tap. thanks in advance

[So Cal Mark]

8mm x 1.25