S&S Cycle 132" Power Package for M8 Engines

Unleash the full potential of your Milwaukee-Eight engine with the S&S Cycle 132" Power Package. This premium bolt-in big bore kit dramatically increases displacement from 114"/117" to a formidable 132", delivering massive power and torque without requiring any case machining.

Description

Engineered for motorcycle enthusiasts demanding top-tier performance, the S&S Cycle 132" Power Package transforms your M8 engine into a true powerhouse. This comprehensive kit features 4.32" bore cylinders paired with 11.0:1 compression ratio forged pistons, ensuring robust power delivery and enhanced throttle response. At its core, an S&S oil pump and cam plate, finished in striking blue anodize, work in conjunction with independent scavenge sections for both the flywheel cavity and cam chest, optimizing oil flow and scavenging efficiency. Debris screens in the scavenge pickups and a magnet in the cam chest provide superior protection against harmful contaminants, prolonging engine life. The adjustable pressure relief valve allows for fine-tuning even after installation. Performance is further amplified by S&S 550 cams, specifically designed for big bore applications, complemented by S&S valve springs capable of handling up to 0.605" lift. Quickee pushrods and premium tappets with hard-anodized, black-coated billet aluminum tappet cuffs ensure durability and precision. Proudly Made in the USA, this kit includes all necessary exhaust, cylinder base, and head gaskets for a complete installation.

Features & Highlights

• Massive Displacement Increase: Effortlessly upgrades 114"/117" M8 engines with a 4.5" stroke to a powerful 132" displacement, providing significant horsepower and torque gains without the need for case machining.
• High-Performance Internals: Includes 4.32" bore cylinders, 11.0:1 compression ratio forged pistons, S&S 550 cams optimized for big bore applications, and high-performance valve springs supporting up to 0.605" lift.
• Advanced Oiling System: Features an S&S oil pump/cam plate with a blue anodized finish, independent scavenge sections, debris screens, and a cam chest magnet to ensure superior lubrication and engine protection.
• Durable & Serviceable Design: Constructed with hard-anodized, black-coated billet aluminum tappet cuffs and Quickee pushrods for reliability, while removable passage plugs and an adjustable pressure relief valve simplify maintenance and tuning.
• Complete Bolt-In Solution: Comes with S&S premium tappets and all essential gaskets (exhaust, cylinder base, head) for a straightforward installation, making it a comprehensive upgrade package.
• Made in the USA: Guarantees exceptional quality, precision engineering, and reliable performance from a trusted American manufacturer.

Technical Specifications

• Type: Engine
• Model: Power Package
• Units: Kit
• Bore Size: 4.320"
• Color/Finish: Highlighted Fins, Black Granite
• Displacement: 132"
• Stroke Length: 4.5"
• Cam Drive Type: Gear
• Cooling System: Water Cooled
• Compression Ratio: 11.0:1

Important to Know

Not for 121" CVO models.
Not for any Trike models.