Usually 150,000 is expected from your average Civic without too much nonsense. My in-laws have three of them and the highest mileage one is over 200,000 but is rusting from Pennsylvania winters. Their second one is getting up to about 200,000. The old one is an AWD Civic Wagon (1989) and needs valve seals and a tuneup at just over 200,000 miles (maybe like 230,000). I've heard of about 350,000 from a Civic but this requires proper maintenance, tuning, care, and luck (not so much luck because the engines are very well designed).
Yes, but it is a federal offense to put an older engine into a car that is newer.
yes
put a ford engine in it
yes
IF YOU DONT KNOW, YOU PROBABLY WONT BE REPLACING AN ENGINE.
With a lot of fabrication anything is possible. I've seen a Ford 5.0 engine in a Civic.
Yes of course you can, but it isn't easy doing such a swap.
Your car is VTEC already.
You can only swap an engine of a Civic Hatchback with an engine of a newer car. Its only legal to swap in engines of the same or newer OBD series. So the Civic engine you swap with has to be a 94 or newer but any of those engines will fit.
At least 200,000 miles.
Yes it can . . simply put. You can even drop a civic engine in it
No. EK chassis Civics utilize D and B family engines. 4th Gen Preludes utilize F and H family engines. While it is possible (although difficult) to put a Prelude engine in a Civic, there is both no straightforward method and no logical reason to put a Civic engine in a Prelude.