| 
 
  
 
 
 
 
 
 
 
 
 
 
 
   
 
  
1973 Engine Codes & Production
  
  
    | 
       Engine C.I.D.  | 
    
       Carb. Type  | 
    
       Trans. Code  | 
    
       Std. Code  | 
    
       Calif. Code  | 
    
       Compression Ratio  | 
    
       Horsepower  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       3SPD.MAN  | 
    
       WS  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       4SPD.MAN  | 
    
       WK1  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       4SPD.MAN  | 
    
       WP  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YS  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       --  | 
    
       ZS  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YY1  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       Y31  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       400  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YT2  | 
    
       --  | 
    
       8.0:1  | 
    
       230  | 
   
    | 
       455  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YC  | 
    
       --  | 
    
       8.0:1  | 
    
       250  | 
   
    | 
       455  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       --  | 
    
       ZC  | 
    
       8.0:1  | 
    
       250  | 
   
    | 
       455  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YA1  | 
    
       --  | 
    
       8.0:1  | 
    
       250  | 
   
    | 
       455  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       --  | 
    
       ZA  | 
    
       8.0:1  | 
    
       250  | 
   
    | 
       455  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YK2  | 
    
       --  | 
    
       8.0:1  | 
    
       250  | 
   
    | 
       455  | 
    
       4-BBL  | 
    
       AUTO.  | 
    
       YD3  | 
    
       --  | 
    
       8.0:1  | 
    
       250  |   
 |