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 the 7/16 bolt in the stock head, you will have to drill out one hole from 3/8 to 7/16 in the L bracket.
 
Example Mini GM Part # Tuff Stuff 7937AST