I would have to say it depends on how you drive it. It's not a new idea (supercharged motor) for ford, and several lightnings and cobras have over 100k, so I'd think you're good.
I have a lot of experience in running forums (mine is issforums.com) and this seems like a hell of a good forum here - congrats to all the members that make this place real. I hope to have a GT in the near future...