DeSoto Master Parts List - Model Code questions regarding engines

[30DodgePanel]

Hoping you guys can help me better understand DeSoto and Fargo engine stampings.

A few years back I bought a DeSoto Master Parts List book in order to compare to any Dodge Brothers truck similarities for 1928-32.

 

At the beginning of the DeSoto MPB showing the model codes on the left it has the following

 

Model Code

K (6 cyl)

CK (6 cyl)

CF (8 cyl) and so on down the line from SA, SAX, SC, SCX, and SD.

 

 

Question #1.)

 do all the DeSoto engines from this era have these prefixed letters stamped into the engine block before the number?

 

 

The reason I ask:

I see in the Fargo truck section it has model codes that read

QC (4 cyl Packet) 1928-29

KC (6 cyl Packet) 1929-30

PT (6 cyl Clipper) 1928-30

K-1 (6c cyl Freighter) 1929-30

 

Question #2.) 

IF the prefixed letters listed above are for passenger car engine stampings

then my understanding is that any Chrysler 6 cyl engine stamped PT175000-241280 would be out of a Clipper?
Is that correct?

 

Note:

The engine range 175000-241280 was found in a Pacific Coast Red Book specifically for 1929 Fargo Clipper engines, which is similar to Branhams Auto Reference if anyone was curious why I used those numbers for my example...

 

Thanks for the help

Dave
 

 

Edited February 1 by 30DodgePanel (see edit history)