Originally Posted by NEUSWEDE
I would say if it doesn't have paper work for an engine rebuild I would prepare to have 10-15k on hand for an inframe engine rebuild. Most engines are set for rebuilds at 500k-600k
I have a 2002 Pete with a 550hp cat 6nz 993,000 on the clock, inframe was done at 900,000. Depends on how it's operated and maintained.. Although, like ducnut has stated, the maintenance may have been lacking.
I do agree with you on having cash on hand for an inframe and also any other possible maintenance issues. These trucks are expensive and at this age will start to nickel and dime you to death.