There have been claims made by some dealers and manufactures of cooling head that 7075 Aluminum is a better material for cooling heads and I would like to clear that up for you. 7075 Aluminum is a very strong material, and it is also much heavier and denser than 6061, and that is why it should NOT be used for making cooling heads. Just think about it for a moment please, if you try to heat up a dense material like steel or even oil, it takes a long time for it to absorb the heat, and when you let it cool down it will take a long time for it to cool down too.  So if you use it to make a cooling head, it will not absorb the heat from the engine fast enough, and when it finally does, it will take a long time for it to dispense that heat into the air. On the other hand, the 6061 Aluminum, is light weight and less dens than the 7075, so it will absorb the heat much faster and also dispense it to the air faster than the dense 7075 Aluminum. The second reason you should not use a 7075 Aluminum cooling head is that it is much stronger than your engine, and in case you flip your truck and hit the head, you will break your engine, which is much more expensive than your cooling head.

In the above picture you can see that our head have 14 fins that is 2.5" in dia. while the stock head have only 10 fins that range from 2.225" to 2.375"

This Cooling Head should reduce your engine temp. by at least 50 - 60 Deg's. If your engine cuts off when it gets hot, this head should help a lot. Please go to view seller other items to see the rest of our products. Please look at our feedback it will give you an idea about who we are.