S&S Cycle Power Package Engine Kit for M8

Transform your Milwaukee-Eight engine with the S&S Cycle 132" Power Package Engine Kit, engineered to deliver a monumental boost in displacement and performance. This comprehensive bolt-in solution upgrades 114" or 117" M8 engines with a 4.5" stroke to a potent 132" engine, all without requiring any case machining.

Description

Unleash the full potential of your M8 with the S&S Cycle 132" Power Package. This meticulously engineered big bore kit is designed for a straightforward bolt-in installation, eliminating the need for complex and costly case machining. At its core are high-performance 4.32" bore cylinders paired with robust 11.0:1 compression ratio forged pistons, transforming your engine's displacement to a massive 132". The kit includes an advanced S&S oil pump and cam plate, featuring a distinctive blue anodized finish, which significantly enhances oil flow capacity on both the feed and scavenge sides. Independent scavenge sections for the flywheel cavity and cam chest, along with debris screens and a magnet in the cam chest, ensure superior lubrication and protection against harmful contaminants.

Durability and ease of maintenance are paramount, with features like removable passage plugs for servicing and an adjustable pressure relief valve that can be fine-tuned even when installed. The Power Package is completed with S&S Quickee pushrods, premium tappets, and billet aluminum hard-anodized, black-coated tappet cuffs for unwavering valve train stability. Specifically designed for big bore applications, the included S&S 550 cams work in harmony with high-performance conical single wire valve springs, capable of handling cam lifts up to 0.605". Gaskets for exhaust, cylinder base, and head are all included for a complete installation. Proudly made in the USA, this S&S 132 inch engine kit delivers uncompromising power and reliability for your Harley-Davidson M8.

Features & Highlights

• Massive 132" Displacement Upgrade: Instantly transform your 114" or 117" M8 engine with a 4.5" stroke to a powerful 132" without any case machining, providing a significant boost in torque and horsepower.
• High-Performance Cylinder & Piston Kit: Features durable 4.32" bore cylinders and robust 11.0:1 compression ratio forged pistons, engineered for extreme reliability and power output.
• Enhanced Oil System & Protection: Includes an S&S oil pump/cam plate with a blue anodized finish, offering increased oil flow, independent scavenge sections, debris screens, and a cam chest magnet to prolong engine life.
• Optimized Valve Train Components: Equipped with S&S Quickee pushrods, premium tappets, and billet aluminum hard-anodized tappet cuffs for superior valve train stability and precise operation.
• Big Bore Specific Camshafts & Springs: Comes with S&S 550 cams tailored for big bore applications, paired with high-performance conical single wire valve springs supporting up to 0.605" lift for optimal power delivery.
• Complete Bolt-In Solution: Designed for easy installation with all necessary exhaust, cylinder base, and head gaskets included, ensuring a hassle-free upgrade process.

Technical Specifications

• Type: Engine Power Package
• Model: Power Package
• Units: Kit
• Bore Size: 4.32"
• Color/Finish: Highlighted Fins, Black Granite
• Displacement: 132"
• Product Name: Performance Kit
• Stroke Length: 4-1/2"
• Cam Drive Type: Chain
• Cooling System: Oil Cooled
• Compression Ratio: 11.0:1
• Vendor Part Number: 310-1237C

Important to Know

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

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