Error on my part by not requesting a receipt. Although I do have documentation stating I'm getting a TT engine. This shop is most likely flying under the radar when it comes to state/federal requirments for operating a business. He seems to have plenty of customers and is fairly well known locally. That's why I'm kinda confused on this. Why would someone that has a good reputation do this sort of thing to a new customer. Basically I don't want to be a total prick but at the same time I don't want to get screwed. I don't think this guy wants anything to do with small claims court for many reasons other than mine.