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Upgrade your M8 engine with the S&S CYCLE Power Pack, featuring a 4.375-inch stroke designed for enhanced performance and durability. This bolt-on kit includes a comprehensive set of components such as forged pistons, an oil pump with cam plate, pushrods, tappets, and a 550 camshaft, all crafted to improve engine efficiency and power output. Made in the USA, the kit requires no case machining, simplifying installation while ensuring a precise fit. The oil pump and cam plate are precision machined from billet aluminum, with removable passage plugs for easy servicing. Independent scavenge sections for the flywheel cavity and camchest, along with debris screens in both pickups, help maintain clean oil flow and prevent contaminants from entering critical engine parts. An embedded magnet in the camchest further reduces debris entry into the oil pump, extending component lifespan. The kit delivers a significant flow increase—44% on the supply side and 58% on the scavenge side—resulting in better lubrication and engine cooling. The included pressure relief valve is adjustable with the unit installed, allowing fine-tuning for optimal performance. Quickee pushrods and hand-assembled tappets with close tolerances minimize valve train noise from startup to shutdown and reduce leak-down rates for reliable operation. Tappet cuffs are hard anodized black and made of billet aluminum, providing enhanced stability during high lift and high rpm conditions. This Power Pack offers a robust solution for riders seeking to boost their M8 engine's power, reliability, and longevity with high-quality components and proven engineering. Designed for ease of installation and long-term performance, it is an ideal upgrade for both street and performance builds.
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US Dollars
