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Willys engine casting numbers

Posted: Tue Mar 02, 2010 1:26 pm
by railroadgoatoat
What year is this casting number ??? Supposed to be 1942 Willys but I don't think so.
641087-L-W2A-N1-OP-N2

Thanks

Re: Willys engine casting numbers

Posted: Tue Mar 02, 2010 1:31 pm
by Jon
641087

From my "notes" that casting number started in 1946

JR

Re: Willys engine casting numbers

Posted: Tue Mar 02, 2010 3:34 pm
by lowenuf
correct Jon, and ran through early CJ3A production....

Re: Willys engine casting numbers

Posted: Tue Mar 02, 2010 3:47 pm
by railroadgoatoat
Thanks guys. Kind of what I thought, but seller said "Oh no, totally original". Where do you guys find those casting and date information at ???