1970 LT1 Carb date code - NCRS Discussion Boards

1970 LT1 Carb date code

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • David F.
    Infrequent User
    • March 1, 2005
    • 17

    1970 LT1 Carb date code

    I have a 1970 LT1 with a holley #4555 #3972121 which seem to be the correct numbers for this car. The date code shows 0304. I know the older units have just 3 digits and I know how they are decoded, but I am not sure on this one.
    What date is 0304 ?
  • Jeremy D.
    Very Frequent User
    • November 1, 1998
    • 323

    #2
    (Message Deleted by Poster)

    Message Deleted by Poster

    Comment

    • Warren F.
      Expired
      • December 1, 1987
      • 1516

      #3
      Re: 1970 LT1 Carb date code

      Dave,

      The 4 digit date codes were used on Holley carburetors after 1972. The first 3 digits are a Julian calendar date January 1st, 001 through December 31st 365, the fourth digit indicates the year.

      So 0304 would be the 30th day of 1974 or 1984. Maybe January 30th 1974.

      Comment

      Working...

      Debug Information

      Searching...Please wait.
      An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

      Please push the back button and reload the previous window.'
      An unexpected error was returned: 'Your submission could not be processed because the token has expired.

      Please push the back button and reload the previous window.'
      An internal error has occurred and the module cannot be displayed.
      There are no results that meet this criteria.
      Search Result for "|||"