The only text in Einsteiniana suggesting that the gravitational time
dilation is illusory and that the gravitational redshift arises from
the variation of the speed of light in a gravitational field:

http://www.amazon.com/Relativity-Its.../dp/0486406768
Banesh Hoffmann: "In an accelerated sky laboratory, and therefore also
in the corresponding earth laboratory, the frequence of arrival of
light pulses is lower than the ticking rate of the upper clocks EVEN
THOUGH ALL THE CLOCKS GO AT THE SAME RATE. (...) As a result the
experimenter at the ceiling of the sky laboratory will see with his
own eyes that the floor clock is going at a slower rate than the
ceiling clock - EVEN THOUGH, AS I HAVE STRESSED, BOTH ARE GOING AT THE
SAME RATE. (...) THE GRAVITATIONAL RED SHIFT DOES NOT ARISE FROM
CHANGES IN THE INTRINSIC RATES OF CLOCKS. It arises from WHAT BEFALLS
LIGHT SIGNALS AS THEY TRAVERSE SPACE AND TIME IN THE PRESENCE OF
GRAVITATION."

Pentcho Valev