Big Block

V8
 
                                                  

                                    Original                    After being

                                Specifications            Professionally Rebuilt

Text Box: click here for METRIC conversion Displacement                           454 ci                              460 ci                                                 

Compression ratio                   8.5 : 1                             10 : 1                                                 

                                                                                                  

                                                                                                

Power  (SAE)  Gross/Net    365(1)/ 285 hp                392(2)/ 306 hp               

                                             @ 4800 rpm                    @ 5000 rpm

                                                                                                             

Torque             Gross/Net    465(1)/ 383 lb.ft             500 / 412 lb.ft          see chart        

                                             @ 3200 rpm                    @ 3200 rpm

 

                                                      (1) 1971 manufacturer’s specifications    (2) estimated from DIN measurement ±2%  

 

 


                                                

                       

 


      Transmission :  Manual 4 speed close ratio (M20)  /  Axle ratio : 3.08