11 One of the reasons why stability is important is because of Mopar’s high camshaft location within the block. This is great for engines with a lot of stroke, but it also creates some extreme angles for the lifters, pushrods and rockers. It only gets worse when you install a high-performance camshaft with more valve lift than a stock. Because it is impossible to get everything directly in line from the camshaft lobe to the valve, it is important that the components you choose can handle the side loading. The more aggressive the cam and the higher the rpm, the more precautions you need to take.