1940/41 Pontiac engine swap

Was wondering if anyone knows if I could swap out my 1940 Pontiac inline 6 223 ci engine motor for a 1941 Pontiac inline 6 239ci? Is there anything different about these 2 motors besides the bore? Are the mounts the same? Anything different at all? Thanks for any info.

 

Well there was a slight change in GM production in 41'-'52 I believe..I'll check my chilton for you after "HAMB'ing it up @ work"!

 

I have the 239 in my '40 Pontiac. I believe it is the same, at least as for the mounts.

 

according to the 23rd Hollander 37 -48 6 will intrechange with a note; " To interchange 41-42 with 37-40 use clutch shaft pilot brg. from replacing engine" hope this helps