Holley Carburetor build date question?
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Holley Carburetor build date question?
How can you calculate the actual build date from the build date stamped on the carb?
My new dominator says: 0974 as build date.. What does that mean?
My new dominator says: 0974 as build date.. What does that mean?
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The last line under the "LIST" number contains a build date sequence, and it may be given in either a 3 or 4 digit combination. For 3 digit codes, the first digit indicates the year of production, the second digit reveals the month of production, and the third digit yields the week of the month the carburetor was produced. There may be instances where the second digit is either a number or a letter. This dating system seems to have rmained in effect through the end of 1972, when Holley began to employ a 4 digit code.
Basically, the 4 digit dating system is based on the Julian calendar. The Julian calendar assigns 001 to the date January 1, and continues on through 365 for December 31 (366 in Leap years). So, the first three digits indicate the day of the year while the last digit reveals the year of production.
97th day of 2004??
JIM
Basically, the 4 digit dating system is based on the Julian calendar. The Julian calendar assigns 001 to the date January 1, and continues on through 365 for December 31 (366 in Leap years). So, the first three digits indicate the day of the year while the last digit reveals the year of production.
97th day of 2004??
JIM
