That's just wrong. If they want to do it with a fender tagless 318 car it's one thing, but to do it to a 440-6 car with the fender tag still there and even the coolant instructions still on the rad support is insane. The build sheet might even still be in there somewhere and they'll probably just toss it if they find it.
Maybe next they can put a new Shelby engine in a 69 Z 28, or a Viper engine in an original AC Cobra