1964-1965 Ford Mustang Concours 289 HiPo Motor Mount Frame Brackets. These are identical to the original 289 HiPo frame brackets with the correct part numbers and markings cast in. They are cast iron and finished in a natural metal grey paint for corrosion protection. Although similar in appearance to standard 1965 Mustang frame brackets, these are unique and not compatible with non-HiPo motor mount brackets.