Briscoe joins former BMW factory pilot Dirk Muller, American Joey Hand and Britain's Richard Westbrook.
“I'm so proud to be a part of the program. I've got a lot of familiar faces at Chip Ganassi Racing. It really is like family.
“We've known each other for 10 years now, so Chip's a great man. He runs an unbelievable race team and it's a huge honor to be a part of.
“It's great to be a part of Ford now and going racing next year at Le Mans is gonna be huge.”
Ganassi is yet to disclose the drivers who will join the team for the long distance races although Kiwi Scott Dixon and Sebastien Bourdais have been linked to the seats.
VIDEO: Briscoe joins Ford's GT squad