S&S Cycle 132" Power Package for M8 Engines

Elevate your Harley-Davidson M8 engine's performance to an exhilarating new level with the S&S Cycle 132" Power Package. This comprehensive bolt-in big bore kit is engineered to transform your 114" or 117" M8 engine, boosting displacement to a massive 132" without requiring any case machining.

Description

Experience a dramatic increase in horsepower and torque with the S&S Cycle 132" Power Package, a meticulously engineered performance kit designed for Harley-Davidson M8 engines. This bolt-in upgrade features high-quality 4.32" bore cylinders paired with durable 11.0:1 compression ratio forged pistons, ensuring both exhilarating power and long-term reliability. The kit includes an advanced S&S oil pump and cam plate, distinguished by its striking blue anodized finish. This system boasts independent scavenge sections for the flywheel cavity and cam chest, along with debris screens in both scavenge pickups and a cam chest magnet to prevent harmful particles from entering the oil pump. Increased oil flow capacity on both the feed and scavenge sides, plus an adjustable pressure relief valve, guarantee optimal lubrication and engine protection. For a complete, high-performance valvetrain, the package integrates S&S Quickee pushrods, premium tappets, and hard-anodized, black-coated billet aluminum tappet cuffs. The included S&S 550 cams are specifically designed for big bore applications, complemented by S&S valve springs with a high-performance conical single wire design, capable of handling cams with up to 0.605" lift. Proudly made in the USA, this kit also comes with all necessary exhaust, cylinder base, and head gaskets for a seamless installation.

Features & Highlights

• Massive Displacement Boost: Transforms 114"/117" M8 engines to a powerful 132" with a 4.5" stroke, delivering significant horsepower and torque gains without complex case machining.
• Optimized Compression & Durability: Features 4.32" bore cylinders and 11.0:1 compression ratio forged pistons for enhanced power and long-term reliability.
• Advanced Oiling System: Includes S&S oil pump/cam plate with independent scavenge sections, debris screens, and a cam chest magnet for superior lubrication and engine protection.
• Precision Valve Train Components: Equipped with S&S Quickee pushrods, premium tappets, hard-anodized billet tappet cuffs, and S&S 550 cams optimized for big bore applications.
• High-Performance Valve Springs: Conical single wire spring design supports cams up to 0.605" lift, ensuring optimal valve control at high RPMs.
• Complete Gasket Set Included: Comes with exhaust, cylinder base, and head gaskets for a complete, hassle-free installation.

Technical Specifications

• Type: Engine Power Package
• Model: Power Package
• Product Name: Performance Kit
• Displacement: 132"
• Bore Size: 4.32"
• Stroke Length: 4-1/2"
• Compression Ratio: 11.0:1
• Cam Drive Type: Chain
• Cooling System: Oil Cooled
• Color/Finish: Non-Highlighted Fins, Wrinkle Black
• Valve Spring Lift Capacity: Up to 0.605"
• Made In: USA
• Vendor Part Number: 310-1233C

Important to Know

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

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