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

Transform your Milwaukee-Eight engine with the S&S Cycle 132" Power Package Big Bore Kit, engineered to deliver a significant boost in displacement and performance. This comprehensive bolt-in solution takes your 114" or 117" M8 engine up to a massive 132 cubic inches, all without requiring any complex case machining. Experience unparalleled power and torque designed for the serious rider.

Description

The S&S Cycle 132" Power Package is a meticulously engineered M8 engine upgrade, designed to maximize the potential of your Harley-Davidson Milwaukee-Eight. At its core are high-performance 4.32" bore cylinders paired with 11.0:1 compression ratio forged pistons, ensuring robust power delivery and enhanced throttle response. This kit features an updated profile for optimal performance and a seamless bolt-in installation, eliminating the need for costly and time-consuming case machining.

Beyond the impressive displacement, this power package integrates a sophisticated S&S oil pump and cam plate, finished with a distinctive blue anodized coating. This advanced oiling system boasts independent scavenge sections for both the flywheel cavity and cam chest, ensuring superior oil return and lubrication. Integrated debris screens in both scavenge pickups and a magnet in the cam chest prevent contaminants from reaching critical engine components, significantly increasing engine longevity and reliability. With increased oil flow capacity on both the feed and scavenge sides, coupled with an adjustable pressure relief valve that can be serviced with the unit installed, your engine receives optimal lubrication under all conditions. The kit also includes S&S Quickee pushrods, premium tappets, and hard-anodized, black-coated billet aluminum tappet cuffs for a durable and precise valvetrain. Power is further enhanced by S&S 550 cams, specifically designed for big bore applications, and high-performance conical single wire valve springs capable of handling cam lifts up to 0.605". Proudly Made in the USA, this kit delivers proven performance and S&S Cycle's legendary quality, making it the ultimate Milwaukee-Eight performance upgrade.

Features & Highlights

• Massive 132" Displacement Upgrade: Instantly transform your 114" or 117" M8 engine to 132 cubic inches with 4.32" bore cylinders and 11.0:1 compression ratio forged pistons, delivering a dramatic increase in power and torque.
• Effortless Bolt-In Installation: Designed as a direct bolt-in kit, eliminating the need for complex and costly case machining, making installation straightforward and efficient.
• Advanced S&S Oiling System: Features a blue anodized S&S oil pump/cam plate with independent scavenge sections, debris screens, cam chest magnet, increased oil flow, and an adjustable pressure relief valve for superior lubrication and engine protection.
• Optimized Valvetrain Components: Includes S&S Quickee pushrods, premium tappets, durable billet aluminum tappet cuffs, and S&S 550 cams tailored for big bore applications, ensuring precise valve timing and maximum performance.
• High-Performance Valve Springs: Equipped with S&S conical single wire valve springs, engineered to support cam lifts up to 0.605", providing reliable valve control even under extreme conditions.
• Uncompromised Quality: Proudly Made in the USA, this power package reflects S&S Cycle's commitment to exceptional craftsmanship and performance engineering.

Technical Specifications

• Model: Performance Kit
• Style: 550G
• Units: Kit
• Bore Size: 4.320"
• Color/Finish: Non-Highlighted Fins, Wrinkle Black
• Displacement: 132"
• Product Name: Power Package
• Stroke Length: 4.500"
• Cam Drive Type: Gear
• Cooling System: Oil Cooled
• Compression Ratio: 11.0:1
• Vendor Part Number: 310-1234D

Important to Know

• Not for any Trike models.
• Intake/rocker cover gaskets not included.