|
Holley Three-Digit Date Codes |
|||||
|
1st Digit |
2nd Digit |
3rd Digit |
|||
|
Stamp |
Year |
Stamp |
Month |
Stamp |
Week |
|
5 |
1965 |
1 |
January |
1 |
1st week |
|
6 |
1966 |
2 |
February |
2 |
2nd week |
|
7 |
1967 |
3 |
March |
3 |
3rd week |
|
8 |
1968 |
4 |
April |
4 |
4th week |
|
9 |
1969 |
5 |
May |
5 |
5th week |
|
0 |
1970 |
6 |
June |
|
|
|
1 |
1971 |
7 |
July |
|
|
|
2 |
1972 |
8 |
August |
|
|
|
|
|
9 |
September |
|
|
|
|
|
0 |
October |
|
|
|
|
|
A |
November |
|
|
|
|
|
B |
December |
|
|
072
0=2970
7=July
2=2nd week
1970 Z28
032
0=1970
3=March
2=2nd week
|
Holley Four-Digit Date Codes |
||||
|
First Three Digits |
Fourth Digit |
|||
|
Julian Date Stamp |
Month |
Year |
||
|
Regular Year |
Leap Year |
|
Stamp |
Year |
|
001-031 |
001-031 |
January |
3 |
1973/1983/1993 |
|
032-059 |
032-060 |
February |
4 |
1974/1984/1994 |
|
060-090 |
061-091 |
March |
5 |
1975/1985/1995 |
|
091-120 |
092-121 |
April |
6 |
1976/1986/1996 |
|
121-151 |
122-152 |
May |
7 |
1977/1987/1997 |
|
152-181 |
153-182 |
June |
8 |
1978/1988/1998 |
|
182-212 |
183-231 |
July |
9 |
1979/1989/1999 |
|
213-243 |
214-244 |
August |
0 |
1980/1990/2000 |
|
244-273 |
245-275 |
September |
1 |
1981/1991 |
|
274-304 |
276-305 |
October |
2 |
1982/1992 |
|
305-334 |
306-335 |
November |
|
|
|
335-365 |
336-366 |
December |
|
|
0348
034=February
8=1978