can u use a 20B rotor housing to rebuild 13B?
 

as the title states....

Yes, but why?

More displacement !? I'd say no, cause if the housing is wider, you'll need wider rotors, longer e-shaft... you're basically castrating a 20b... by using two rotor faces...

The increase in displacement comes from the extra rotor, not the size of the housings. There's no funtional difference between a 20B rotor housing and one for a 13B.

To answer your question, Batman, if you happen to have a 20B housing sitting around, you can use it. Otherwise, there's no point because 13B housings are far more plentiful and there's nothing to be gained by using one from a 20B.

20B rotor housing have a SMALLER exhaust port. Not ideal if you ask me...

I think the exhaust port is the same as the 13b housing. It's the exhaust sleeve that is restrictive

ghetto fabulous

Thanks, that was the answer I needed.

Just to clarify things, I didn't even want to reply to DCrosby since his answer didn't even deserve a response.

I'm not looking to "increase" the displacement with a 20B rotor housing, but just happen to come across an oppurtunity to procure one for engine rebuild.

hey give DC a break hes a good member everyone makes mistakes

Oops, that's right. The sleeve is a "D" shape whereas the FD sleeve isn't...

Clearwater........ ho hum