351cj...
Hundreds of millions of dollars?
What are you smoking?
They have in house designers, not outsider contractors. They pay them what they pay them, they have machining equipment and they also have data.
I dont know where you get 100million from.
Maybe 3-4million tops with research/ development, testing and employee pay.
They made their money back time and time again with the 4.6, which has been around since 92.