S&S CYCLE Power Pack for M8 4.375" Stroke - Oil Cooled with Black Granite Finish (Part No. 310-1059C)

Product type: Big Bore Kits

Vendor: S&S CYCLE

SKU : 0904-0138

Regular price $3,497.95 USD

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Power Pack - 4.375" Stroke - Oil Cooled - Black Granite w/Highlights - M8 Upgrade your Harley M8 engine with the S&S...

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

Upgrade your Harley M8 engine with the S&S CYCLE Power Pack, part number 310-1059C, designed for optimal performance and durability. This bolt-on kit features a 4.375-inch stroke and is oil cooled, ensuring efficient heat management during high-performance riding. The kit includes a precision-machined oil pump and cam plate made from billet aluminum, with removable passage plugs for easy servicing and maintenance. The independent scavenge sections for the flywheel cavity and camchest, along with debris screens and a debris-stopping magnet, help keep oil clean and free of contaminants, promoting engine longevity.
Enhanced flow rates are a key feature of this power pack, with a 44% increase on the supply side and a 58% increase on the scavenge side, resulting in improved oil circulation and engine efficiency. The pressure relief valve is adjustable when installed, allowing for custom tuning based on your riding needs. The kit also includes Quickee pushrods for precise valvetrain operation, and hand-assembled tappets with tight tolerances reduce valve train noise from start-up to shut-down, ensuring a quieter, smoother ride.
Tappet cuffs are hard anodized black and constructed from billet aluminum, providing stability at high lift and high RPM conditions. These components work together to deliver a high-performance upgrade that enhances power, reliability, and engine responsiveness. Whether you're building a custom cruiser or a high-performance motorcycle, the S&S Power Pack offers a comprehensive solution for serious riders seeking superior engine performance and durability.

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