Cooling System
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Joined: Sep 2003
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From: St. Louis MO
Cooling System
Well, the motor in my 64 327 300 HP is all back together and just about ready to run. I just need to fill it up with coolant - how much does it hold? Also, I usually just buy 50/50 mix - does anybody know of any problems with doing this? Thanks.
Safety Car
Joined: Feb 2006
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According to the owners manual....19 quarts. Unless they are using some fancy distilled water in the 50/50 mix, I would use tap water. It is cheap where I live, only $1.20 per cubic yard. Just a coincidence, I got my water bill today...............honest.
Team Owner
Joined: Oct 2000
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From: Washington Michigan
I'd "first-fire" it with plain water, in case you have to deal with any leaks or dump the coolant to address a problem. Once you're done with cam break-in and leak-free, then dump the water and add the anti-freeze. 
Safety Car
Joined: Mar 2003
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From: Philadelphia PA
Just one question, how long would I have before I would have to worry about it overheating or doing any damage? I mean I'm guessing plain water is going to heat faster than a 50/50 mix. I would probably run it for a good 10 minutes so everything is cycling through the make sure there are no leaks.
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Joined: Sep 2003
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From: St. Louis MO
Good idea John. I didn't put water in first this time time and just started with no leaks, but I have in the past and then had to drain the coolant into buckets so not to waste it. I didn't put in a new sending unit but probably need one - I also replaced the water pump, radiator, hoses, and thermostat (180) and the gauge reads 220 but the hoses don't feel hot at all.
Team Owner
Joined: Mar 2003
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From: Greenville, Indiana
That is a great idea...never thought of that. I'll be using this method as I just replaced the heater core...thanks John...
Just one question, how long would I have before I would have to worry about it overheating or doing any damage? I mean I'm guessing plain water is going to heat faster than a 50/50 mix. I would probably run it for a good 10 minutes so everything is cycling through the make sure there are no leaks.
Just one question, how long would I have before I would have to worry about it overheating or doing any damage? I mean I'm guessing plain water is going to heat faster than a 50/50 mix. I would probably run it for a good 10 minutes so everything is cycling through the make sure there are no leaks.
