HOW TO FILL A DRY COOLING SYSTEM WITH NO AIR LOCKS

The 318 I put on the stand, filled it with coolant......When it got to 220* I shut it down and it blew coolant all over the garage like a volcano (ran with a loose rad cap). I let it cool, topped it off and everything was fine after that. I don't want this happening with this 340.

Did you fill the block with coolant through the thermostat housing before installing the t-stat? I had a similar incident the first time I overhauled the original 318 in my Duster, since then I've just filled the block before putting in the t-stat and it's been fine.