Technical Pontiac guys - will a 400 Dizzy fit my 347

As above - will a Mallory distributor for a 400 Pontiac fit my 1957 347 motor?

 

I have a 75 HEI in my 56 316.

 

Thanks - I thought distributors had interchange right across the range

 

I believe all Pontiac distributors from 1955 to 1981 will interchange.

 

Yes, it should work, I've had a 301 distributor installed on a '59 motor and that fit okay.