Running it for 5 mins won't work.Yes, the coolant was drained from the fitting in front of the water pump. The engine was out of the sled and the coolant completely drained. New crank, monoblock and pistons. I'm not sure I'm seeing coolant moving in the reservoir but I don't recall seeing that in the past.
edit: I am wondering about the thermostat at this point. If it won't open I believe what I am experiencing would be the result.
Take the thermostat out, reconnect it back and run it so the coolant flows throughout the system unobstructed.
I wouldn't want to run it without fluid in the block.
Lift the front of the sled while burping it.
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