Serial numbers (all series) according to plant of manufacture:
| 1st digit indicates assembly plant |
remaining series indicates sequential production numbers |
| 1=Flint, Michigan |
16740001 to 17214106 |
| 2=Southgate, California |
26765001 to 27214776 |
| 3=Linden, New Jersey |
36774001 to 37217064 |
| 4=Kansas City, Kansas |
46783001 to 47224950 |
| 5=Wilmington, Delaware |
56799001 to 57226180 |
| 6=Atlanta, Georgia |
66808001 to 67228458 |
| 7=Framingham, Massachusetts |
76815001 to 77228805 |
| |
|
| Engine Numbers |
|
Series 40 suffix=4
Series 50 suffix=5
Series 70 suffix=7 |
All Series engines start with number
62400100 |
|
