Reason being my dad and I are possibly thinking about pulling the 289 out of our 66' stang and go with a 427 build. I figure if i can find an old 427 block we will have our machinest take it apart clean it up new goodies inside and throw it into the car. Should work with our setup, we are going with new clutch/flywheel, Rearend setup with Eaton Posi setup, ect ect. Need some ideas though.