These brackets simplify BBC alternator mounting! Positioned on the front of the right cylinder head, the HTP Billet BBC Alternator mount kit avoids header interference and allows space for a mechanical fuel pump. This kits stands alone and is not reliant on the motor plate.  Designed for a clean, professional look, they offer strength without flexing. The kit includes all necessary hardware for a proper fit of all aftermarket and stock heads.
 
If using a stock head that requires 1 7/16 bolt on the lower outboard side, you will have to drill that hole from 3/8 to 7/16 in the L bracket, spacer and arm.  We can also drill it for you!! 
 
Example Mini GM Part # Tuff Stuff 7937AST