Billet Specialties 10420 Independent Driver Side Mount Alternator Bracket for Small Block Chevy Brand New Polished Independent Alternator Bracket for SBC Short Water Pumps &gt; This Bracket is produced by Billet Specialties (Part # 10420) This bracket mounts the alternator on the driver's side of the engine and positions it outside of the driver's side valve cover &gt; You can see where it mounts the alternator in the picture and diagram at the bottom This bracket is for use with: &gt; Small Block Chevy standard heads &gt; SBC Short water pumps &gt; GM 10SI or 12SI alternators &gt; These alternators were popular on numerous GM vehicles from 1962-1994 &gt; They have a 2 bolt mounting pattern (one at 12 o'clock and one at 6 o'clock) that measure 168mm (or 6.61") center-to-center; see the diagram shown Even if you don't purchase that alternator, the description lists all of the many GM vehicles that this model was used on &gt; V-groove pulleys &gt; Billet Specialties independent alternator brackets are CNC machined from 6061-T6 billet aluminum and polished to a mirror finish They are independently adjustable without stabilizer bars for a clean look &gt; Multi-point fastening ensures stability and belt tension *** The images shows a picture of where the bracket mounts the alternator (This listing only includes the alternator bracket itself) ***