Quote:
Originally Posted by 1967Tempest
Hmmm... You raise a good question:
Will a 455 cool correctly with an 8 bolt water pump. I assume that you did this so the pulleys, etc.. will line up.
Most of the time, if you are moving and it runs warm, that is an indication that there is not enough coolant flow.
If it was at idle, you need more air over the rad.
Whats the t-stat temp?
You could richen it up a little. If it starts to run cooler, then you do have a vacuum leak. Also could spray water near the intake to see if you a vacuum leak.
HTH,
Dave
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It gets warm in both situations . I went through my fan clutches and found one with about 3/8 inch longer shaft which would put the fan into the shroud more. that helped a little . I may try shimming the shroud back a bit .
I will try your idea and richen up air mixture.
On the change of the timing cover I have done it in the past and didn't seem to have any problems. the 428 in the 65 is done the same way. I haven't driven it on the road as it's still not finished but we've driven it around the house moved it in and out of the garage and let it idle warms up to 180 - 190 and on a 3 core rad the 64 has the original 4 core trip rad.
I can't believe there is a blockage in the 455 the coolant was too clean and there is good flow across the top of the rad .