Hi John,
   I have tried to send this twice during the past week, but the screen goes blank. I have looked at the books and at the 2655 more closely, and I think this may be a repower. The front motor mounting bolts are shiny-new.  The air cleaner is not original, it is the same as John Deere uses on their 450 dozer and the fuel filter is a single large filter, nothing like what Oliver used. I am not complaining tho' it is a good repower.
 I have looked at all the 2655 manuals and nothing but the 2455 shows a D504A-6 motor.
    I took pictures of the motor with the hood off ( I replaced the manifold gaskets this week) that I can send you, but when I try on this site that is when the whole mess shuts down. If you send me your E-mail, I can send them direct. My E-Mail is:     <!-- e --><a href="mailto:maarrestad@snet.net">maarrestad@snet.net</a><!-- e -->
 Hope the weather is cooperating for you this week.
                                    Cal