coolant change and hardblock

[athabasca]

Started the coolant drain procedure today and when I took off the
drivers side block drain it was dry.
Then I remembered the engine has a hardblock filled block.

Ive had the truck about 8 months and the PO was buliding it for competition.

Now I just have to find out how much hardblock went in it.
I drained about 6 gallons from the radiator and lower rad hose.

Is there a general rule out there for when this stuff is poured in?
How does the oil cooler get coolant if its at the bottom of the block?

How do I drain any old coolant out of the block?

Cheers

[NoRalPh]

There are plugs at the bottom of the block (on both sides) you need to remove to do a through drain.

Here's some good pics -> Gooch's Radiator/Engine Backflush Procedure and Coolant Information - Ford Truck Enthusiasts Forums

[athabasca]

Thanks for the reply. I removed both these plugs and thats where I realised it was filled with Hard block. Nothing drained out.

[NoRalPh]

Ahh,, I see, I guess I'm not familiar with the whole HardBlock mod....

Maybe what you are going to have to do is just an EXTRA good, LONG flush (I'm a big fan of distilled water for the removal of minerals during a flush). I'd think if you refilled & dumped just distilled water 3-4 times you could be sure to get it all (driving or warming-up the engine each time)