The Mack E6 AND E7 are two engines that look very similar. There are a lot of similarities between the two , yet there are also some differences.1. Size: One of the notable differences is the size. The E7 is bigger than the E6. The E6 is 672 cubic inches, while the E7 is 728 cubic inches. The size [...]

In this article, I will tell you the difference between the Mack E6 2 valves and 4 valves engine.The Mack E6 with two valves has two valves on each cylinder, one intake and one exhaust. This means that the 2 Valve Mack E6 engine which has 6 cylinders, carries 12 valves.While the Mack E6 with 4 [...]