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Upgrade your Milwaukee-Eight engine with the S&S Cycle 128" Power Package, designed for exceptional performance and durability. This comprehensive big bore kit increases engine displacement from 114 or 117 inches to 128 inches without requiring case machining, thanks to precision-engineered components. The kit features 4-1/4 inch bore cylinders paired with 11:1 forged pistons, delivering increased power and torque for demanding riding situations. Built in the USA, this kit ensures quality craftsmanship and reliable performance that meets high standards. The included oil pump and cam plate are finished in blue anodized aluminum, with removable passage plugs for easy servicing. Independent scavenge sections for the flywheel cavity and camchest, along with debris screens in both pickups, improve oil flow and help prevent contaminants from entering critical engine areas. An integrated magnet in the camchest further assists in debris control, promoting longer engine life. The oil flow capacity is enhanced on both feed and scavenge sides, ensuring efficient lubrication under high-performance conditions. An adjustable pressure relief valve allows fine-tuning of oil pressure while the engine is assembled, providing flexibility for optimal operation. The kit also includes Quikee chrome pushrods with matching tubes and premium tappets with black-coated, billet aluminum cuffed tappet cuffs, which improve stability at high lift and high RPM. The S&S 550 cam is specifically designed for big bore applications, providing a significant boost in power output. High-performance conical single-wire valve springs are compatible with cams up to .605 inch lift, ensuring reliable valve operation at elevated RPMs. Overall, this kit is an ideal upgrade for riders seeking increased horsepower, improved oiling, and enhanced engine stability for their Milwaukee-Eight motorcycle. Its durable construction and precise engineering make it a top choice for performance enthusiasts and professional builders alike.
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US Dollars
