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Pierce Manifold threaded ports size??

Scotty

Scotty

Silver Level Sponsor
For those who have a Pierce Manifolds Sunbeam Alpine Manifold (for Weber 32/36), can someone tell me what is the size of the two threaded vacuum ports (one on the side at the plenum and one above the #1 cylinder) on the manifold? I can't find information on that anywhere.

Sent the Stroms out to be rebuilt after rebuilding them myself and having some issues. I got one of these manifolds just on a lark, so while I wait.... why not?

Thanks!
 
Last edited:
In an email exchange I had with Jerome back in 2020, he told me that both ports are 1/4" NPT 18 taper.
 
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