If the lower neck is the OD same size as the water pump neck, it will work. The radiator I have (not Cold Case) has an angled lower neck on it, I just had to shorten my lower hose by 1/4" to take the slight kink out of it.
Jack, as suggested earlier either the block or the heads need to be o ringed. Under normal street driving with the blower you won't normally have a problem. But when you get into it, the boost is trying to push the head gaskets out. That is ONE of the shortcomings of the SBM with only 10 head...
Sorry for the loss of your son. What I've found while trying to put a car together after being taken apart for a while is;
1. Assemble what you know goes together.
2. Arrange parts that go to specific areas and assemble what you can.
3. If you have questions about things, post pictures with the...