Kurt,
The location of the dipstick proves you have a 1390, 1494 or a 1592cc
engine. Early 1390's installed in Sunbeam Rapier 1 and Hillman Minx MK 8A
and Series 1 did not have an ID number stamped on the block. If by chance
there is an oval cover plate located mid-block on the lower right side just
forward of the distributor, it is a 1390. The casting date you gave of
11-7-56 also leads me to believe it is a 1390. Factory replacement
shortblocks also do not have a number stamped on them. I know that's not
much help, but without either a C&D test (compression and displacement) like
the NASCAR boys are policed with or an actual tear-down, I doubt you can
prove what you have.
Jim Leach PTC Seattle
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