I don't know if those engines are worth the money. With the aftermarket the way it is now you can get great engines through many hotrod shops at great prices. Just check ebay. Even if you get someone elses engine you could get a really good deal. Take for instance I have a complete Edelbrock Performer RPM package 383 for sale for $2500.00 with barely a 100 miles on it. This package is $6000 if you order it right now. As soon as you get it in and unwrap it, it's value goes out the window if you decide to sell it. Not that anything is wrong with it, just that's a big trust issue so pricing usually makes up for that. In the end it makes for some good deals to be had if your careful.