Help me decode an intake manifold please

[matthon]

OK, I am looking for an intake manifold that will be date coded to my engine.
2205968 is correct for a 1962-67 383.
The problem I am having is for 67, the date codes are not the same as the later codes. The later codes appear to be in the normal date format, such as 6*9*69, (June 9, 1969).
For 67, the date codes have 2 numbers and a letter, the only letter I have seen is an X.

So, for example, what does this date code represent: 9X22

 

[matthon]

bump

 

[66340SEDAN]

You have a 1962-1967 383+4 intake manifold. Sept 22? Any other numbers on the manifold?

 

[matthon]

I don't have one, yet, but I want to get one except I have no idea what the date codes mean.
If a 383-4 intake for 1962-67 is part number 2205968, then the date codes can't be month/day, correct?

The all appear to have a 4 and some symbols that are the same as well.

I checked e-bay and found 3 with these codes:
9X22
10X15
5-3

This one has great pics but no other codes than the original pic I posted:
http://img.inkfrog.com/click_enlarge1.php?image=X87B_001.JPG&username=cuda71_sg&aid=323814265

This pic is the 5-3 one: (??)

 

[matthon]

Somebody has to know this, no?

 

[matthon]

Anyone?
Should I buy a book from Galen?

 

[Guttorm Frisell]

I have the same problem with my 1970/71 model 383s intake manifolds. Date code 9X15 and 6-13. On my 440s and 340s intake manifolds it’s normal date codes with month day year codes. How can this be?

 

[oldkimmer]

Look on the bottom. Kim

 

[Guttorm Frisell]

The cryptic date codes on 1970/71 383 intake manifolds are on the underside. See pictures.

 

[oldkimmer]

The guys over on the b and c body sites are pretty good with these things. Kim

 

[str12-340]

If nobody knows how to decode the damned things, how would someone know it's not right...just sayin'