S&S CYCLE Power Pack - 4.375-Inch Stroke Water Cooled for M8 Engines (Part No. 310-1050C)

Product type: Big Bore Kits

Vendor: S&S CYCLE

SKU : 0904-0146

Regular price $3,294.95 USD

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

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

Upgrade your M8 engine with the S&S CYCLE Power Pack, designed for enhanced performance and durability. This bolt-on kit features an array of premium components including forged pistons and a high-performance camshaft, providing a significant boost in power output. The kit is crafted in the USA and requires no case machining, simplifying installation while ensuring a precise fit. Included are an oil pump and cam plate, pushrods, tappets, and tappet cuffs, all engineered for optimal operation and longevity.

The oil pump and cam plate are precision machined from billet aluminum, with removable passage plugs for straightforward servicing. Independent scavenge sections improve oil flow efficiency, with debris screens in both pickups and a magnet in the camchest to prevent debris from reaching the oil pump. These features contribute to a 44% increase in supply side flow and a 58% increase on the scavenge side, promoting better lubrication and engine longevity. The pressure relief valve is adjustable with the unit installed, allowing fine-tuning of oil pressure for various operating conditions.

Pushrods are Quickee style, offering quick installation and reliable performance, while the hand-assembled tappets are built to exacting tolerances to reduce valve train noise from startup to shutdown. Close tolerances ensure low leak-down rates, enhancing efficiency. Tappet cuffs are billet aluminum with a hard anodized black coating, providing added stability during high lift and high RPM situations. This comprehensive Power Pack assembly delivers robust performance, improved oil flow, and reliable operation, making it an excellent upgrade for enthusiasts seeking to maximize their M8 engine's capabilities.

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