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engine date code
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  1. Stock Chevy Discussion 55-56-57
    Can anyone decipher these block casting numbers 3731548 and stamped number F722F. Casting number 3720991 stamped number 0639785F56F. Thanks
  2. Stock Chevy Discussion 55-56-57
    I am totally Puzzled about my date code on my Engine. I searched for 2 days on various sites and books and still puzzled. F32IF (Flint, March, 2nd, "I", 2 bbl Carb 283 V-8) Some say the I is a one, some say to omit the I. I have see 1-ones on cars so why not use a 1-one? I am confused...
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