Offenhauser 4bbl carb stud and spacer question

[armyofchuckness]

So I'm getting ready to put my engine together and I haven't been able to find the carb stud sizes for the intake. Are they anything weird? Also, I'm going to need a small spacer to work with the linkage on my Edelbrock 500CFM carb. What size spacers are you running?

Thanks!

 

[mguner]

5/16 NC in the manifold side and the carb side are 5/16 NF. Sometimes the manifold gets stripped out and a dual size stud is used, usually a 3/8 NC to 5/16 NF. Bolts are also an option but wear the manifold threads prematurely.

 

[armyofchuckness]

Thanks! That's what I was looking for. Appreciate the help!