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Harley Stage 2 Upgrade ComponentsYou’ve added horsepower and torque with your Stage 1 upgrade. Now it’s time to fine tune it with a Stage 2 upgrade. The main focus of the Stage 2 is swapping out the cam or cams. Doing so allows you to get either increased torque, horsepower or a good mix of both. Each aftermarket camshaft is designed to do different things, which makes the second stage a great step for fine tuning the performance of your Harley.
Aftermarket cams are a great way to personalize the performance of your Harley. Brands like S&S, Andrews and Feuling produce camshafts that can boost the performance in specific areas. Want more low end grunt (like most do), there are cams designed to boost torque. If you want to push the limits of your speedo, there are cams that increase your horsepower. And if you just want to improve in all areas, there are options for that as well.
There are two ‘installation style’ types of cams: bolt-in and high-lift. Bolt-in cams allow you to use all of your other stock valvetrain components. High-lift cams require new valve springs, pushrods and rocker arms. The heads must also come off to install the high-lift valve springs. The extra work does pay off though, as the torque and horsepower gains can be quite significant. If Stage 2 is where your modifications end, then the bolt-in cams are the preferred choice.
While the main portion of the Stage 2 upgrade consists of replacing the cams, there are other components that need to be swapped out as well. Replacing cams requires you to also replace the pushrods and tappet valves. A fuel remap may also be required to get the most out of your upgrades. And of course, you should also have done a Stage 1 upgrade.
Whatever route you choose to go with on your Stage 2 upgrade, you will be able to find what you need at Dennis Kirk. We stock and carry a great selection of cams, pushrods and tappets to get the job done. Use the Ride Selector at the top of the page to find all of the parts that fit your specific ride. Also, feel free to contact our knowledgeable Tech Team if you have any questions on which parts are best for you and your Harley.