Will a B block dizzy fit a RB block?

Have a new mopar electronic ignition and vacuum dizzy for a 383 (b-block), guy wants to put it in a RB block 440, will it fit?

 

If it's for a big block it should fit

 

The RB dist is longer and will not work in a B block. All other components for ign. will work, you just need to get an RB dist.

 

Doesn't someone make some sort of an adaptor that extends the b block dist to rb length? seems it was a machined sleeve to allow you to use it.

 

I think the adapter is for using the RB dist. in a B block. The RB is longer so it's like a spacer.
64Fury, I have a dist. for RB if you need one, let me know.

 

Yup, the spacer lets the RB dist work in the B engine. Mopar Performance had them and so did many other parts suppliers like Mancini but I have no idea if they still offer them. I may have an extra laying around still...made about a dozen of them over the years....