Brant, Please answer the things I posted above, such as how long you have owned the car? did you inspect the car and drive the car prior to buying it? exactly what is wrong with the engine? if you didn't inspect or drive the car prior to buying it did you have someone else do this? how did you find this car? have you talked to Jared to ask him what he knows about the car from when he owned it? Is he the one who put the engine in it?
Yes, you should expect to get what you paid for but without more information I I would find it hard to accuse Scott of being a scammer. It should always be a buyer beware when buying something on the internet especially if buying sight unseen. I would suggest you contact Jared to find out everything he may have done to the car when he owned it. Rather than coming here to post something negative about who you purchased the car from your time may be better spent considering legal action. Many states have a "Lemon Law" when it comes to vehicles, that may be something you may want to look into also.
Calling him a scammer here is something you should not do without more proof. I would also suggest speaking with a lawyer.
rob