LS1 electric fan conversion
In 2007 Chevy went to a factory electric fan system. Along with an electric fan they also upgraded the alternator to 140 amps (from 105) and installed a larger radiator. This netted a factory gain of 10 horsepower.
So the best thing to do is swap the larger radiator, alternator and fans. Since I’m trying to maintain a budget I will not be doing this.
It turns out that an electric fan from a LS1 equipped Camaro fits the 99-02 (maybe to 06) Silverado trucks.
What’s neat is you can actually reprogram the stock computer to control this fan as if it was there from the factory! Hopefully when I’m done, it will look and act as if it’s factory.
Here are the pics of my setup.
Mine came with this controller. Honestly, I don’t know anything about it.
Project "Charlie Murphy" 