From:Doug Strange e-mail:amcadoug@aol.com
Subject:RE: RE: RE: RE: Engine number ss Date:Wed Jul 26 09:53:58 2017
Response to:6647
There could be several other reasons for the extra
lettering. The font is different from the serial number.
It may have been an owner's initials for theft ID. Ace used
to take in motors for a factory rebuild so perhaps this is
the same with extra letters added for a specific reason.
Even on new motors, Ace would add a designation for alloy
pistons (Sport model) if the iron piston were supposed to be
standard. I doubt the SS was added at the time of
manufacture.

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It might be interesting to see if it is also stamped inside
the cam chest (by the
same number) the same way. If not, my guess is that it was
done after it left the
factory.
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Only stamped behind engine number as per photo
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Hi
anyone know of what the ss stands for ?
Thanks Craig.
Does it appear anywhere else on the case?