S&S CYCLE 129" Power Package Engine Performance Kit - Gear Drive - Oil Cooled - Highlighted Fins - M8 310-1227

129" Power Package Engine Performance Kit - 310-1227

• Transforms 107" oil-cooled M8 into a powerful 129" without case machining.
• Includes big bore cylinders paired with a matching cam, cam plate, and oil pump.
• Features independent scavenge sections for efficient flow in flywheel cavity and cam chest.
• Equipped with a magnet in the cam chest to prevent debris from entering the oil pump.
• High-performance conical single-wire S&S valve springs ensure optimal engine performance.
• Retains original engine serial numbers and includes removable passage plugs for easy servicing.

Upgrade your ride with this comprehensive engine performance kit designed for maximum efficiency and power. Made in the USA, it combines advanced engineering with user-friendly features to enhance your motorcycle's performance seamlessly.