Cast iron pedestal mount for the air conditioning compressor on all 1967 and 1968 cars with 390-2V, 390-4V, or 428CJ FE engines. Mercury and Ford master part number C7ZZ-2882-A, we suspect that this is an error in our 1975 editions of the MPC's. C7SZ-2882-A is what we suspect is the correct number. In any case, C7SA-2882-A is the factory casting number on these brackets.
Below are some pictures of a 390 with AC and smog. This motor was pulled from a 1967 Thunderbird, so there are a few minor differences when compared to a 1967 Cougar or Mustang but the mounting of brackets and belt alignment are the same.
Ford part # C7SA-2882-A
Click on images to enlarge.
The picture below is of a custom and the very bottom is of the Cougar used in the movie "From Dusk Till Dawn".