Originally posted by Racer X 69 Yes, I don't even plan on splitting the case and removing the reciprocal assembly. The cylinders don't have any scoring, the original cross hatch still looking new. New hoses and timing drive pulleys. Button it up and try for another 200,000 miles.
Modern gas engines seem pretty durable now. Think some of it maybe due to fuel injection, better oil (synthetic -better flowing in cold starts, etc.), tight computer control that keeps engine settings-set, and manufacturing practices.
A friend of mine who has both his gas engine and heavy duty diesel mechanic licenses, told me that the federal emissions regulation , in his opinion, has made a difference...as manufacturers are required to make engines that run well, in order to be able to meet emission standards for a number of years / miles.
I recall back in the 1960's/' 70's that stores like Canadian Tire, Sear's, etc. used to sell rebuilt gas engines of popular makes in their catalogues. And back before this era, it wasn't uncommon to get a valve job or an engine 'rebuild' .
Your Subaru engine is probably typical of many modern gas engines, of different makes. As long as you follow manufacturer service requirements, getting 200,000 miles out of a gas engine, or much more, is not uncommon.
Your assessment of the condition of the engine from your Subaru, as per your quote (see below) , is indicative of how long a modern engine can last nowadays.
"I don't even plan on splitting the case and removing the reciprocal assembly. The cylinders don't have any scoring, the original cross hatch still looking new. New hoses and timing drive pulleys. Button it up and try for another 200,000 miles. "
I'm pretty sure you will reach that additional 200,000 miles maybe more, on the mechanical components of your car. Nowadays it can be body rust, electronic components, etc...that spell doom for a vehicle, but not the mechanical components.