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Decoding Ford date codes

 
  Engine components Ford Carburetors  
  Holley Carburetors Sheet metal Stampings  
       

Engine components with date code castings 3 or 4 digit date codes

Ford 3 or 4 digit date codes on engine castings are very much similar in their composition and by far the most common types. It always starts with the Year digit then the Month digit followed by 1 or 2 numerical digits for the Day. This type format is valid where the date is set at moment of casting.

This 3 digit sample date code casting number is for a 302 engine block C8OE-6015-A with date

code 9B7.

   9B7

Year

9 = 1969

Numeric
 9B7

Month

B = February

A - M     January through December  

There is no I , the I is omitted

 9B7

Day

7 = 7th day

Numeric 1 to 31

This engine block was cast on the 7th of February 1969 making this block a correct for 1969 model application.

 

This 4 digit sample date casting number is from a 351C intake manifold D0AE-9425-L with date

code 0L27.

   0L27

Year

0 = 1970

Numeric
 0L27

Month

L = November

A - M   January through December  

There is no I , the I is omitted

 0L27

Day

27 = 27th day

Numeric 1 to 31
This intake manifold was cast on the 27th of November 1970 making this intake correct for 1971 model application.

 

Below is an example of a different type of date code. This date code is different to the regular 3

digit type and has only 2 components to it(Month, Year). A73 comes from Fan Blade D0ZE-B.

   A73

Month

A = January

A - M     January through December

There is no I , the I is omitted

 A73

Year

73 = 1973

2 digits Numeric

This Fan Blade was built in January 1973.

 

 

Decoding Ford Carburetor date codes

Autolite carburetor use a 3 or 4 digit date code system.

Starts with the year on left, a letter in the middle for the month and a 1 or 2 digit number on the right depicting the day of manufacture.

this tag is typical of an Autolite 4300 carburetor, C8ZF-A with date code 8B13.

   8B13

Year

8 = 1968

Numeric
 8B13

Month

B = February

A - M   January through December

There is no I , the I is omitted

 8B13

Day

13 = 13th day

Numeric 1 to 31
This carburetor was assembled on the 13th of February 1968 making this carburetor correct for 1968 model application.

 

Decoding the Ford Holley date code

Holley Carburetors with 3 digit Numeric date codes.

This sample code is from a 1969 BOSS 302 carburetor with date code 951.

   951

Year

9 = 1969

0 - 9
 951

Month

5 = May

1 - 9 = January through September  

0 =October   A =November  B =December

 951

Week

1 = 1st week

0 - 5

Some months contain up to 5 weeks

This carburetor was built during the first week of May 1969

 

Holley Carburetors 4 digit Numeric date codes.

This sample casting number from a 1970 carburetor with date code 0995 .

   0995

Day of the year

099 = 99th day of the year

1 to 365
 0995

Year

5 =5th year. 1975, 1985 or 1995

 

More then likely this carburetor was built on the 99th day of 1975

 

Holley Carburetors with 3 digit Alphanumeric date codes

For this exercise the sample date code casting number is 0FB

   0FB

Year

9 = 1970

0 - 9
 0FB

Month

F = June

A - M = January through December  

There is no I

 0FB

Week

B = 2nd week

A - E

Some months contain up to 5 weeks

This carburetor was built during the second week of June 1970

 

Decoding Ford sheet metal stampings

Most Ford panels have a date code stamped in them. It is usually part number and part alphanumeric. The first set of digits is the Month, second part is the Day, and the third part is a code for the stamping plant combined with the Shift that actually stamped the panel.

Decoding Ford sheet metal stampings

   4  15  B2

Month

4 = April

Each numerical value between 1 - 12 corresponds to a month
 15  B2

Day

15

Numerical values between 1 - 31

 4  15  B2

Plant

B = Buffalo

see table 1-1 for popular Stamping Plants

 4  15  B2

Shift

2 = 2nd shift

Usually one of 3 shifts

The Year is not represented in these stamping date codes since it is normally assumed the year of the car is a given default. This means if the car is a 1965 Mustang and the date code on the hood is "3  9  D1"  then this hood was stamped in March of 1965.

One should also take into account the model year since actual year may be different. A date code of "11  28  W2" on a 1967 Ford means the part was stamped in November of 1966, making it correct for the 1967 model year.

This date code was found on the inner fender of a 1966 Mustang assembled in San Jose.

   1  21  D2

Month

1 = January
 1  21  D2

Day

21

 1  21  D2

Plant

D =Dearborn
1  21  D2

Shift

2 = 2nd shift

This date code is January 21 1966 second shift in Dearborn

 

This date code is found on strut support of a 1968 Shelby. It is a little different as compared to the others where it displays the Shift number prior to the Plant letter.

   1  7   2D

Month

1 = January
 1  7   2D

Day

7

 1  7   2D

Shift

2 = 2nd shift
1  7   2D

Plant

D =Dearborn

This date code is January 7 1968 second shift in Dearborn

 

A door panel from a 1964 Mustang.

   8  28  2B

Month

8 = August
 8  28   2B

Day

28

 8  28  2B

Shift

2 = 2nd shift
8  28  2B

Plant

B =Buffalo

This date code is August 28 1964 second shift in Buffalo.

 

In general the basic format prevails but as always Ford had a variety of variances if the stamping formats.

This date code is found on a 1966 Mustang but the code does not indicate which Plant

   12  16  2

Month

12 = December
 12  16  2

Day

16

12  16  2

Shift

2 = 2nd shift

The date code is December 16 1965 second shift.

 

Table 1.1 Some popular Ford sheet metal Stamping Plants used in the 60s-70s

A

Chicago,  Illinois

 B

Buffalo,  New York

C

Cleveland.  Ohio

D
Dearborn,  Michigan
M
Monroe,  Michigan
W
Woodhaven,  Michigan