Yes, here it is:
The Rolls-Royce/Snecma Olympus engines that are fitted to Concorde are a highly developed version of the Bristol-Siddeley Olympus that was fitted to the Vulcan bomber, which generated 11,000Lbs of thrust. Roll-Royce provided the development of the Olympus engines while SNECMA developed the exhaust and reheat system. On the prototypes this powerplant system was upgraded to generate 33,000Lbs of thrust and by the time it was fitted to the production aircraft, 38,050Lbs were available.
http://www.concordesst.com/powerplant.html
It takes a lot of money to keep them flying. I always hate to see them collecting mothballs.