S&S CYCLE Power Pack for M8 4.375" Stroke Oil Cooled with Black Finish - Part No. 310-1052C

Product type: Big Bore Kits

Vendor: S&S CYCLE

SKU : 0904-0137

Regular price $3,294.95 USD

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Power Pack - 4.375" Stroke - Oil Cooled - Black w/o Highlights - M8 The S&S CYCLE Power Pack for M8 engines...

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Power Pack - 4.375" Stroke - Oil Cooled - Black w/o Highlights - M8

The S&S CYCLE Power Pack for M8 engines with a 4.375-inch stroke offers a comprehensive upgrade for high-performance motorcycle engines. Crafted from billet aluminum, this bolt-on kit features precision-machined components designed to boost oil flow and engine efficiency. The kit includes an oil pump and cam plate with removable passage plugs for easy servicing, along with debris screens in both scavenge pickups to prevent contaminants from entering critical oil passages. An integrated magnet in the camchest assists in debris collection, reducing wear and enhancing engine longevity. This setup provides a 44% increase in supply side flow and a 58% increase on the scavenge side, contributing to improved lubrication and cooling during demanding riding conditions. The pressure relief valve is adjustable with the unit installed, allowing precise tuning to match specific engine requirements. The kit also features Quickee pushrods for quicker installation and reduced valve train noise, with components engineered for low leak-down rates and precise tolerances. Tappets are hand-assembled to exact specifications, ensuring consistent performance and longevity, while the hard anodized black coating on the billet aluminum tappet cuffs offers enhanced durability and stability during high lift and high rpm operations. Designed for easy bolt-on installation without case machining, this Power Pack is ideal for riders seeking reliable, high-performance upgrades that maximize engine longevity and performance.

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