This is the upper AND lower alternator bracket set used on a big block Chevy Engine, 69 and newer with the long water pump. This bracketry is the same on any 396,402,427 or 454 from 1969 up. These are beautifully chromed and ready for a show car or just to dress up your classic car or truck. The upper bracket pictured is the hi tech version, but the solid version may be subsituted at YOUR request, if that is your preference.