Well style motor does it have to be from? 5.0, 4.6 SOHC, 4.6 DOHC.... Im assuming you have to use the 4.6 SOHC style. And I think it was 02+ Gts come with the 70mm from the factory. If you use a 5.0 throttle body, theres about a billion places to buy an aftermark 70mm from....