Exhaust manifold date coding.

[cruiser]

Hi All: Attached are two photos of the exhaust manifold from my slant six 1974 Duster. I believe this is the factory original manifold, but I'm not sure what the date code "J-17" means next to the year 1973. Any ideas? Thanks.

 

[toolmanmike]

Just guessing but October 17

 

[Charrlie_S]

Oct,17, 73 ?

 

[davescuda]

I believe its September 17, 1973

 

[toolmanmike]

I believe its September 17, 1973

October is the 10th month.

 

[davescuda]

October is the 10th month.

(I) is not used in date codes