There are so many factors that it's almost impossible to say.

Typically, you want an engine that:

has never been started in a cold environment (cold startups cause most of the wear and tear on the engine)

has never been driven less than 50 kilometers a trip (frequent short trips are bad, as cold running wears down an engine... and more short trips equals more cold starting)

has never been in traffic (heat soak is bad for the engine)

has never been left to idle for long periods

and has had synthetic oil every change since the break-in

In other words... it's impossible to find a perfect engine.

Whatever the mileage of the engine, you have to check the running condition, which means it should idle well, rev freely, not eat oil, not have high emissions, etcetera.

I've seen lots of engines that have needed an overhaul between 60,000 -100,000 kms, but others have kept on going. Our Crosswind is at 120k, and is perfectly fine... missed a few oil changes, but at least we've changed regularly. Our Highlander is at 140k and it had to have headwork, because oil changes were few and far between.

If you're really good to your engine, it could probably hit 400,000 kms before needing an overhaul... but with our local traffic, it's doubtful. I'd say 200,000 kms would be more realistic.