How many miles/kilometres can the engines (Triton V10, V8) on the Ford E-series vans go before becoming "dead"?

Expert advice please, users experience will be greatly appreciated too.

It will be an economic disaster to have a fuel gobbing van that does not serve out its "cost". I've been considering a 1997-98 offer.

Are u in Naija? Its just happened that i was looking at a Ford Van earlier today (V10, triton) The Van had about 268,000 on the odometer. I dont really know any history on the car at all so i couldn't tell if engine is original or rebuild

However, i picked up a 1988 F250 Pickup truck about a month ago. The truck is solid. Has about 66,000 original miles on it. I am the 2nd owner. The truck has only been owned by the same car since new. Its my first Ford truck and just going by whatever the luck brings. I must tell you though that it uses a lot of petrol. Roughly about 5km/liter. I got it primarily for towing things.

I will assume that the Van will be worse in petrol consumption. Mine is a V8, 5.0Litre F250. The Vans i believe are E350 . One guy said he had about 300,000 miles on his truck already. Will keep u posted when i know more on the trucks.

Will u be using this in Naija? Think about it very well before u do. Good luck.

@Kunle-A, thanks.

I'm in naija. The vans are already in use here, and are beginning to gain ground. The 2000s editions would not have been any trouble to use but it's just that they are scarce and usually high priced (understandably, may be). But I'm considering here 96-98 models.

From what I've found out 66,000miles is "safe use" for the engines. Think the alarm is from 100k miles.

Still looking to more views. Oga Sultaan are you anywhere around?

I know nothing about those vans, just got one for movement around during my visit for a wedding.
Everyone gets a car to sell ,I thought this will be faster, just got the third row sit installed, going to ship within a week

@sultaan, is it the same one you posted a couple of months back?

Anyway sorry to have bothered you, thought you know.

I'm looking to words, experts' or users'.