Technical: Other Crankcase Numbers
Scott Lange


Belly Number Examples

Here are some examples of belly numbers.


Case Casting Numbers and Date Codes

Here are some examples of crackcase casting numbers and date codes. As you can see, the cast cases and covers started with no casting dates, then around 1959 they started adding casting dates, then around 1965/1966 they could have used only casting marks without casting dates, or ? Just what the ‘Circle E’ and other miscellaneous marks mean is a mystery.