The riskiest thing you can do on this site, is buy an engine, sight unseen. I finally learned after getting screwed twice, then almost a third time ( I'm a slow learner ). There are a lot of good people who buy and sell here.....there are just as many scammers, wheeler dealers, looking to screw you. They all come across as honest, decent, car guys. Just remember this " Every morning, half of the population wakes up with the intention to screw the other half out of their monay, that day."