using an electric fan in the pusher orientation, can actually impede air flow at highway speeds, As far as drilling the holes, as Dave has suggested. I would listen to Dave, he has a whole lot more experience with these engines than YOUR mechanic I am almost certain of that. Unless you have changed something about your truck dramatically, (replaced the six with a blown hemi or something) The original setup works very well with a large margin of extra capacity. I ran mine with a 195 degree thermostat for 25 years, it didn't matter what the outside temp was, it never wavered, I live in Seattle now, but the truck was originally in San Diego, where I drove it for 3 years. It isn't the hottest part of the country, but the cooling was never even an issue. Not even on the trip through death valley with a GVW of 5400 LBS, (it was loaded) I would at least check it with all the new pieces before I went and started removing extremely proven components.
Last edited by brokenhead; 08/13/2013 6:59 AM.
