Desoto engine parts interchange

Hey all,
I have a 49' Desoto custom s-13 with a 236 flathead 6 in it and want to find out what other motor parts are interchangeable with it, mainly looking for intake. want to put a dual one barrel set up on it but cant find the match. no one lists any speed parts for Desoto. found a bunch for chrysler and dodge but need to know where to look and for what motor.

Thanks
T

 

My understanding is the Chrysler engines are the same. Dodge & Plymouth shared engines the same way.

 

I make intakes and headers, mostly for the Ply/Dodge, but I've made a couple of sets for the longer (25") Chrysler/DeSoto/Dodge truck. Check out my website and let me know if I can help you out.