----- Original Message -----
From: "Kai M. Radicke" <kradicke@wishboneclassics.com>
> For some reason, I have no notes on 12H91/92/93/94... but if I were to
take
> a guess, those may be rods from the MGB 3 main motor, as their part
numbers
> were 12H997 and 12H998.
My parts book (and Clausinger) show a factory upgrade in the 1600 rods from
the 1H701/3 to the 12H91/3 at engine #16GA 21705 (Apr 1960).Claus describes
thicker webs and modified bearing caps - I measured a few thou thicker on
the web. The parts book says the earlier rod can be replaced with the
later, so I presume they are interchangeable as a set.
Mike
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