I will be replacing my heater core shortly, but I have a question:
Is there any reason I shouldn't put some short lengths of heater hose off of the heater core, just enough to go through the firewall a little bit, and then connect with unions on the forward side of the firewall to the remainder of the heater hose runs. It would make installing the heater easier, and would allow it to be an easier repair if heater hoses ever need to be replaced.
It seems like an obvious thing to do, but I've never heard of anyone doing it.