670

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    Looking for 670 heads D, E or early F codes 1967

    Hi... I have been looking for over a year. Any advice where I might locate matching 1967 manufactured 670 heads with D, E or early F codes? Thank you.
  2. 6

    670 Heads date codes - help needed

    There are some 670 heads with date code M216. I have read that the first letter is the month, then 2-digit for day, and last digit is year. However, M=13 and of course there aren't 13 months. Can someone explain this date code? Thanks.
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