yes, well, thats the full compressor bracket setup ( rear and front ) shown like it was assemblied on compressor itself. This bracket with the pulley attached is of course a bit wider to gives the pulley provission area, but the rest of the bracket is actually the "same"

Can't tell REALLY when or what engines were used... maybe just 440s and maybe just mids/lates 74s ? Maybe 400s didn't get it because the distance is a bit shorter ( lower deck height gives less width too ) ? dunno, althought the pic showns a 400. Those brackets are not easy to find.

I have searched about this because I played with the pulley idea because I HATE the slapping belts when turn on my AC, but then I found they are not common and will need to make AGAIN the AC compressor line, so just forgot about that.

here a pic from the back side of the assembly