I always figured there was a hardware difference between the mustang and MKC, but I found not information to back this up. I have a 3.5L Ecoboost twin turbo flex and the F150 has the same motor but significantly more hp in the F150. Come to find out even though the motor is the same many things were different including bigger turbos.
Back to your question, I find not anything that says this is not the exact same motor but it does not interchange the same (on Hollander). Here is a thread that may answer some questions 2.3L EcoBoost Engine