Stroke with only Pistons and Crank?

The next thing I would do is buy some aluminum heads for this engine in my 66 and put the X heads on my 72 dart. I'm about to put my 72 back together and just didn't have the money to spend at this time so it will get a freshened pair of J heads. I had wanted to "stroke the hell out" of 1 to puti my 72 but I couldn't spend the money right now and I just want to drive it now.