There is quite a bit on these engines that you will find by using the "search" function. Some 24 pages.
I found this which might interest you.
Click here There will be other stuff, but you can rat around in there and find what interests you.
This line in the bit I found will
really interest you:
"They can be used in any Plymouth Dodge DeSoto Chrysler car and Dodge pickup that came with a flathead 6, meaning all the six cylinder cars from 1937 to 1954 plus Plymouth and Dodge to 1959."
regards,Rod