Basic engine swap question?

I'm learning lots about cars regarding modifying/maintaining them. I wanted a used car that I can use as a project to get some experience while i'm still young. A few friends suggested some cars, and I finally found one for my price range that will also hopefully run for the next couple of years while i'm still in college. It's a Mazda RX7 1991 Convertible. The owner said it has close to 100,000 miles on the chassis, but they had done an engine swap with only 10,000 miles on it as of today.


Can someone tell me about the engine swap and the benefits? Like does the swap make the car have a "fresh start" when it's done(run like it first came out in 1991). I know as the chassis gets more miles on it the car will produce more problems, but are there things you can do to make the car not have those problems often such as the engine swap?


I currently don't know the swap, sorry. But it may have been an electric or combustion swap rather than rotary. Any information that you think I should know about will be helpful.





Also I've looked at my local colleges for legitimate automotive classes, but a lot of them don't provide often. I wanted to gain knowledge about fixing up and modifying vehicles in just a couple of years. Does anyone have good sources I can look into over in Southern California? Online based classes are great too.





Thank you !|||Unless they rebuilt the engine before swapping it, it could also have 100,000 miles on it. Usually an engine swap indicates taking a running engine out of a wrecked car or a car that is getting a different engine. Don't forget that the suspension/steering/drive train parts may have 100k on them and need replacement (bushings, tie rods, bearings, etc.). If you buy this car, you are almost guaranteed to have to do work on it and maybe gain the skills/knowledge you are looking for. Good luck!|||It is a 20 year old car! Too old and beyond economical repair or modification for a RX7. To modify a car for better performance is not easy you need to understand the basics of car - Powerplant, transmission, suspension, controls, electric and electronics.