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It will not be a direct swap. The heads were redesigned in 08. Different connectors on the coils for sure. Possibly different CHT sensor connector or location.
Main difference is they take a one piece spark plug. The Ford racing heads are supposedly the new design and can be put on the older engines. So I would assume fixing the electrical connections, using the new style coils and reusing original valve covers would be all that is needed. Please note that I said ASSUME, so I don't know for sure. Hopefully someone who has swapped one will chime in with some firsthand knowledge and I'll search around to see if I can link you any good info on this thread.