Value really depends on what it is. When I had my old 325 my research told me that the value starts at the 392, then the 354, followed by the 325 and 331. The Dodge 315 has some performance value, but everything else is eye candy. There were bigger DeSoto hemis (330 and 341), but there's just about no performance support for them. The "lesser" hemis value depends a lot on who wants it.