GM ORIGINAL 1969 Z28 DZ 302-290hp GM 302 4 BOLT MAIN Standard Bore
                                                                                                                                                                                                          

         GM Original 1969 Z28 DZ 302-290HP   V0331DZ cast number 3956618  cast date C-25-9  block is standard  bore.   Has been cleaned and Cleaned , Magged and Pressure Test and No Cracks  No Sleeves  No breaks no chips on the bottom of the cylinders or anywhere on the block .   100%  original very nice GM Original Z28 DZ 302-290hp GM Block Standard Bore & will build at std bore .
                   

                                                  If you would like to talk by phone email me you phone number and I will call you.  thanks