S&S Cycle 132" Power Package Big Bore Kit for M8

Experience a significant boost in performance with the S&S Cycle 132" Power Package, a comprehensive big-bore bolt-in kit designed to transform your 114" or 117" Milwaukee-Eight engine. This kit delivers an impressive 132" displacement, all without requiring any complex case machining.

Description

Unleash the full potential of your Harley-Davidson Milwaukee-Eight with the S&S Cycle 132" Power Package. This exceptional M8 big bore kit is engineered to elevate your ride's performance, converting your 114" or 117" engine to a massive 132" displacement. The true bolt-in design means you can achieve this significant power increase without the hassle and expense of case machining, making installation straightforward for qualified mechanics.

At the heart of this upgrade are 4.32" bore cylinders paired with 11.0:1 compression ratio forged pistons, meticulously designed to generate maximum horsepower and torque while maintaining long-term durability. The included S&S oil pump and cam plate feature a striking blue anodized finish and an advanced oil management system. This system incorporates independent scavenge sections for both the flywheel cavity and cam chest, along with debris screens in both scavenge pickups and a magnet in the cam chest to effectively prevent harmful particles from entering the oil pump. Increased oil flow capacity on both the feed and scavenge sides, coupled with an adjustable pressure relief valve, ensures optimal lubrication and engine protection under all conditions.

The S&S Cycle 132" Power Package also features high-performance valvetrain components, including S&S 550 cams specifically engineered for big bore applications, Quickee pushrods for easy installation, S&S premium tappets, and robust billet aluminum, hard-anodized black-coated tappet cuffs. High-performance conical single wire valve springs are designed to work seamlessly with cams up to 0.605" lift, providing superior valve control. This kit comes complete with all necessary gaskets, including exhaust, cylinder base, and head gaskets, ensuring a comprehensive upgrade. Proudly made in the USA, this S&S Cycle 132" Power Package is the ultimate Milwaukee-Eight engine upgrade for riders seeking uncompromising power and reliability.

Features & Highlights

• Unleash 132" Displacement: Transform your 114"/117" M8 engine into a powerful 132" beast with this bolt-in kit, eliminating the need for complex and costly case machining.
• Optimized Power & Durability: Features 4.32" bore cylinders paired with 11.0:1 compression ratio forged pistons, engineered for maximum horsepower and long-term reliability.
• Advanced Oil Management System: Includes an S&S oil pump/cam plate with independent scavenge sections, integrated debris screens, a cam chest magnet, and increased oil flow capacity, all designed to ensure optimal lubrication and engine protection.
• Premium Valvetrain Components: Equipped with S&S 550 cams specifically designed for big bore applications, Quickee pushrods for easy installation, S&S premium tappets, and robust billet aluminum, hard-anodized tappet cuffs.
• High-Performance Valve Springs: Conical single wire design valve springs support cams with up to 0.605" lift, ensuring compatibility with aggressive cam profiles for superior valve control.
• Complete & Ready for Installation: The kit comes complete with exhaust, cylinder base, and head gaskets, providing everything needed for a seamless upgrade.
• Proudly Made in the USA: Manufactured with S&S Cycle's renowned quality and precision, ensuring a high-performance product you can trust.

Technical Specifications

• Product Type: Engine Power Package
• Model: Power Package
• Units: Kit
• Displacement: 132"
• Bore Size: 4.32"
• Stroke Length: 4.5"
• Compression Ratio: 11.0:1
• Cooling System: Oil Cooled
• Cam Drive Type: Gear
• Color/Finish: Highlighted Fins, Black Granite
• Features: Chrome Pushrod Tubes
• Vendor Part Number: 310-1238C

Important to Know

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