Is it bad idea to buy a engine with 147000 miles on it?

Answer 1

If you are talking about a replacement used engine-yes. There is no point replacing an engine with one that is unlikely to last long and you can do much better for about the same price. There are many sources to buy low mileage engines that salvage yards pull from totaled cars that will last. If it is a car, it depends on price and your goals. If it's a hobby car or you are replacing engine anyway, it might not make a difference or make more sense to buy one with engine high mileage to reduce initial cash outlay. You may have no transportation at all and just need something that runs and cheap without payments, then you would get the car most likely to last and ignore the brand/type-just focus on what you need vs want