Proform main body thread size?

[73Scamp318]

Does anyone know what the thread size is for the air cleaner stud on the Proform main bodies? It's larger than the stud that came out of the Holley main body it replaced.

 

[godfatherofchry]

well if its not 1/4or5/16 i would say its metric?

 

[prodart340]

5/16

 

[73Scamp318]

Thanks, I'll have to see if I can find some threaded rod or an adapter that I can use.

 

[70Duster440]

I went with a piece of 5/16" threaded rod from the hardware store with a jam nut. I've seen adators in the Help section too.