OK!

Now I can talk about the results: I changed the rad dor a Dewitt "direct fir" A69M with the 333 option (black epoxy paint to make it lood like original) and a Stewart "High Flow" aluminum water pump (# 21204).

1) Result is good. The car does not overheat anymore, even in heavy traffic (in July, in SW Florida), as long as I don't turn the A/C on. With A/C it is OK for a while (I am happy camper since I could'nt even use the A/C until then) but I have to turn it off after a (long) while in traffic by 95F outside temp. When I turn it off, the temp cools down reasonnably fast.
At the end of the day, I used to drive at 235F best case with no A/C; I now drive at 215F and cools down back to 215 much faster if I go a little over.
2) I don't know which part (the rad or the pump) I should thank most since I changed both I the same time.
3) The "direct fit" is not that "direct". The upper connector does not show the same angle than original, resulting in the need to play with and modify the hose route. Something to improve.
4) From what I gathered some engines run hotter than others no matter what.

Glad to hear you are running cooler in this Florida heat and it sure is HOT..From personal experience the aluminum radiator was the big factor in the temp drop and maintaining the temperature. The hi flow pump was a contributing factor too. Hopefully in November you will see another temperature drop...

Roy.

|UPDATED|8/1/2004 12:12:08 PM (AZT)|/UPDATED|

did you add any water wetter..

this might be that last step you need to use air normally

I used a Stewart pump in my 383 stroker along with a high flow thermostat and a hgh pressure radiator cap. Bought a Griffin 2 Tube radiator cheaper than rebuilding my stock one. Also with my Brodix heads there was instructions for drilling the block opposed to holes in the heads where the water would come up the rear and out through the holes in my Edelbrok Air Gap, then I plumbed hoses to the water neck return. The total effect is 160 degree water no mater what so far. But I don't have air conditioning, whew! wish I did here in Houston.

Nope!
No wetter water. Just regular coolant mix.

smoke-m said:...The total effect is 160 degree water no mater what so far...

That's pretty cool though!
I did not even hope to get that cool.
From chatting with professional of Corvette engines, it looks like that some engines run cooler than others (same tyep, same year, etc.) no matter what. It looks like mine is among the hot ones.