Not when you consider that you could have boubht the larger engine in the first place with the cost offset already priced in.

Note, that he said that there is a downside to this. The person could ruin the engine <if not done right> . So, where's the savings there? Consider that this is a beginners forum, and most posters asking questions like this are, by definition, beginners, and may not have the necessary experience or, for that matter, the knowhow to do this sort of modification.

CGr.