Dartin for Divorce

Drain pans and filtered funnels go a long way. I've re-used the coolant that's in my engine a dozen times by now. A working drain petcock does wonders.

If this will be the first time your coolant is drained, you may want to try and get the water jacket plugs out of the engine too and replace them with valves to make fully draining it easier (and prevent unwanted water/coolant from entering your oil pan when you do the cam!).