Flex-a-lite cooling fan, Do the work well

[stringpickin]

Hello Sam.. yes,, these are set up to pull and they are going the correct direction. Someone mentioned the grill in the 72 may help the ram air effect. I wonder if you won't have any problems. It is hard for me to imagine the bar on the 70 grill would actually make the difference, but I guess it could. I have the modine 4 core, high volume water pump, 180 thermo, cast heads. I wish the fans would have worked too. I am still hating the noise of the flex fan. Not bad when I get in to over drive, but I have another 6 hundred miles or so to go before I use overdrive much.. I don't want to lug my motor at all.. For all intents and purposes,, my heating problem is gone. With the electric fans on I saw 223 and bounced for a split second to 231. Since replacing the electric fans I have seen 203 as max, climbing a hill at about 95 degrees out with AC running.. I get the urge to try the fans again, cause I keep thinking maybe the engine was just breaking in, maybe the rings were generating so much heat, maybe I had an air bubble.. maybe this maybe that.. But I can't afford the time right now. I have a long trip coming up in a few days accross the arizona desert that I have been getting prepped for.. And I want as much cooling ability as I can possibly have right now, so I am going to stick with the flex fan for the time being.. I can only say this, it seems that the moment I took of the electric fans my heating problems abated.. You may want to consider putting a stock fan and shroud on for break in unless you don't have any hills to climb in high heat. I hated to see my new motor bounce to 231,, even though it was for a mili-second.. As far the heat sending unit, I believe it is plenty far enough from anything to cause a problem. You must have some 12.5:1 ratio and some whild cam and valves huh?? That baby ought to run.. I am very very happy with the torque and power of my new motor. Some say mine may be 380 horse.. I said 360 to be moderate.. But in either case about 80 horse more than my last 383,, and all I can say is I love it.. Runs like a bear.. Best of luck..