I don't understand all the "don't do it" comments. Pretty obvious who has zero experience doing this. Run in on a stand is a great way to break in and tune an engine. You also have the convenience of being able to fix any leaks without pulling it all the way back out of the car.
Really yall, if you're scared of being a mechanic, keep your mouth shut and let somebody actually do it that isn't afraid. I bet I have run in over a hundred on stands. It works fine as long as the engine is properly supported.
