Hi Les,
I see that my mate Bernie has answered the question. The Australian factory is working very hard on a 4.6 GT40. I saw the car while there last month and it looked good. They had a few small issues to work out but all in all it is going to be a real nice piece of work.
There is no mention of this new addition as it hasn't been totally completed yet. I'm sure that there will be upon the approval of the prototype.
Hersh