I don't know if I'll get a good answer, but our kitchen has a 27" drop-in
range made by GE probably in 1965. They still make a 27" drop-in that is
changed in design and features, but basically sounds like the same animal.

What are the chances that I can buy a new one and simply drop it in where
the existing range is without renovation? I've asked people who sell them,
and GE, and no definitive answer. We want a new stove, but don't really
want to make any but the most minor alterations to get one.

Keith