S&S CYCLE 129" Power Package Engine Performance Kit - Chain Drive - Oil Cooled - Highlighted Fins - M8 310-1225

129" Power Package Engine Performance Kit - 310-1225

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

Elevate your motorcycle's performance with the 129" Power Package Engine Performance Kit. Designed for seamless integration and maximum efficiency, this kit offers a significant boost in power while maintaining the integrity of your engine. Proudly made in the USA, it's the perfect upgrade for any serious rider.