need motor mount help

so i went to swap the motor mounts from the 318 that i took out of my 65 cuda and put them on my new 318 which is out of a 1978 rv and on the passenger side the mounting tabs on the motors are completely different the front has 2 holes on new motor. the old motor has the 2 holes on the back tab. is there a special mounts i can get for the 78 block.

thanks