427 tall deck stroker 2thread

I dont know what happened but it wouldnt let me post there any more on my first thread so heres another thread see if it works.

I found another set of heads that a guy has for sale for 500 bucks casting 3931063 with 2.19/1.88 stainless manley valves no port work. The heads i have now are casting 10114156 oval port that have been gasket ported and cleaned up in the bowls with bronze guides and all. Are those 063 casting heads worth running over the 156 i already have?