Hi Chuckdoc , in a word, yes . Did it solve the issue , no . Everything works great . the fan clutch and the high flow thermostat and the high flow water pump are super . The flow of coolant is great also . However , I am almost positive there is not enough volume . Motor gets hot (210d.) after idle for about 15 minutes but does not puke . My next step is to thoroughly clean inside of block with citric acid . A $3.98 expense . If unsuccessful I plan to purchase an aluminum radiator for a 67-69 bb Dart/Cuda 3 row to increase the volume a bit . thanks for asking . It is a fresh build and there are bound to be teething issues . Later , Tom