I was doing some thinking and came up with an idea. The 700 dragon motor is based on the small block bottom end but, it has a 68mm stroke vs 64mm on the small block 600's. What I am wondering is if the 700 cylinders would fit the 600 small block bottom ends with the 64mm crank, making a 660? If they would bolt up would you need to deck the cylinders since they would be on a shorter stroke bottom end? How would the stock porting work? I'm guessing the 600 heads could be re-cut to work? Thanks Guys.