Sami,
Do you get Aviation Consumer? They do aircraft reviews. They also have
an annual buying guide.
http://www.aviationconsumer.com/books/
Michelle

O. Sami Saydjari wrote:

Is there a website I can go to find out the TBO and overhaul costs of
any given engine? Right now, I am curious bout the GTSIO-520-L on a
Cessna 421C.

-Sami
N2057M

P.S. I thought I already posted this message, but it did not seem to
show up. Sorry if this is a duplicate.