I always had a feeling a V8 EcoBoost was coming :-D
http://www.hotrod.com/news/1604-ford-gt-switches-from-ecoboost-v6-to-v8s-for-le-mans-racing-program/
http://www.hotrod.com/news/1604-ford-gt-switches-from-ecoboost-v6-to-v8s-for-le-mans-racing-program/