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From what I've read in these forums: Not likely into a 150.
That 7.3l engine weighs over 900 lbs dry. Your front end can't take it without extensive modification.
Then, you'll have to swap in all the electronics and purge the fuel system of gas.
You can do anything if you have enough time and money, though.
Come over to the 7.3 liter board and ask there. There are some way more qualified posters there and I think others will back this up, but maybe some one has done it since the last time I read about it.