ORIGINAL: The Raven
My comments were related to 'will it work' rather than 'is it legal'. I thought I made that very clear with my disclaimer.
People associate 'non-legal' as 'doom and gloom' despite technical realities. While I do not encourage anyone to break their local laws there is technically no reason why an appropriate crystal/channel change should't work.
YES, there are technical reasons why it won't work! Radio South checked out a radio I bought from someone else. The former owner had changed the crystal to a different channel. The transmitter output was only 50% of spec. The other reason is that it can cause the radio to be off frequency, such as is described in [link=http://www.bergent.net/crystals.html]Swapping Transmitter Crystals[/link] by Peter Berg.