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<font size=3>The casting number is commonly one digit different from the
final part number. I think they made the finished part drawing
first, then made a copy of it to modify the drawing to show more material
on the casting before machining. When assigning drawing numbers,
the finished part number was first followed by the casting number.
Some castings can be machined differently to make different finished
parts (with different part numbers).<br><br>
Barney Gaylord<br>
1958 MGA with an attitude<br>
<a href="http://mgaguru.com/" eudora="autourl">http://MGAguru.com<br><br>
<br>
</a>At 06:10 PM 11/15/2021, S.Carr wrote:<br><br>
<blockquote type=cite class=cite cite="">The Moss catalog lists two
different part numbers for the stock cast-iron manifold—depending on the
years fitted—but the drawings look idendentical. Can anyone supply
the casting numbers for each? We don’t know what we have.<br>
<br>
Thanks in advance,<br>
Sarah Carr<br>
BN1 in PA<br>
....</font></blockquote></body>
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