Use the chart on the right to translate the letter code into a year.
For example, this picture shows a cylinder block cast date of 8*26*Q, which was August 26, 1947.
The number below the casting date is 251341R1, which is the cylinder block part number.
* Note: in 1951 several
letters were used
**Note: in 1955 and 1977
the letters started over
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