Howdy back:
IF I understand you correctly, you want to know what of the 170 you can use on the 144 engine build????
If that is so, know that both are very similiar in design and function. About the only thing that may not be interchangeable would be the connecting rods, because of length.
The stock 144 head, casting #C0DE-A, has a intake tract volume of 850 ccs, intake valve diameter of 1.46", exhaust 1.266" and a chamber volume ranging all the way from a low of 44 to a high of 51 ccs.
The stock 170 head, casting # C3DE-D, has a intake tract volume of 890 ccs, intake valve diameter of 1.52", exhaust 1.266" and a chamber volume ranging from a low of 48 to a high of 52 ccs.
Both came from the factory with a steel shim head gasket with a compressed thickness of .025". These gaskets are no longer available and are rare to find as NOS. This will be an important part of maintaining the stock 8.7:1 advertized compression ratio.
Both have a carb bore hole measuring 1.5". And both used a solid lifter oiling system with adjustible rocker arms. All interchangeable. Both will have the small distributor mounting hole in the block and the smaller drive shaft off of the oil pump, making upgrading a modification effort or big bucks to buy aftermarket stuff to fit.
The '63 will have a better (Less back pressure and less prone to cracking) exhaust manifold with a 2" outlet and a donut type gasket to the head pipe. The 144 will likely have a 1.75" outlet and a flat gasket to the head pipe.
If you're going for economy use the '63 head and maintain the highest manageable compression ratio. For economy the goal is to keep the heat in and manage it.
The stock 144 cam has only 232 degrees of duration, but with an advertized lift of .360". 144 and early 170 cames are interchangeable, but I'm not sure about timing chain and gears. They must be the early, solid lifter type though. Know the 170 somewhere after the '64/'65 model year went to hydraulic lifters and matching cam.
Hope that will get you started.
Adios, David