Twin H manifold

Edwardjohnsr

I am modifying a single carb system to twin H. My mechanical procedure manual says to exchange the studs in the exhaust manifold for differant ones that were included in the conversion kit. I don't have the new studs. Does anyone know the length of the studs needed for the twin H setup?

Ed

[Deleted User]

Ed-I have a '56 Twin-H on my 308. The outer 2 studs are 4" long and the inner one is 2". You should be able to measure the "thickness" of your intake manifold and add an inch or so for the threads. I had trouble finding studs and finely ordered them from Macmaster-Carr. You can find them on the internet. Norm

Edwardjohnsr

Norm:

Thanks for the info. I'll try McMaster-Carr.

Ed