To answer Perry's origininal question is 434 hours a lot ? No.
Different engines, years, and manufacturers make engine life as consistent as people's shoe sizes.. all over the place.
The best engine I saw on life was a mid 1990's Yahmaha 200 hp HP Sea Tow bought with a 25' Privateer with about 200+ hours on it. It would not die even when traded off for re-powering at 1800 hours.
SO Perry... you never know. I guess that is no answer.
