S&S Cycle 132" Power Package Engine Performance Kit for M8

Elevate your riding experience with the S&S Cycle 132" Power Package engine performance kit, meticulously engineered to transform your Harley-Davidson Milwaukee-Eight 114" or 117" into a true powerhouse. This bolt-on big bore kit delivers a monumental increase in displacement and performance without requiring any complex case machining.

Description

Unleash extreme power and reliability with the S&S Cycle 132" Power Package, designed specifically for Milwaukee-Eight (M8) engines with a 4.50" stroke. This comprehensive kit boosts your 114" or 117" engine to a massive 132" displacement, providing a significant upgrade in torque and horsepower. The heart of this kit features robust 4.320" big bore cylinders paired with 11.0:1 forged pistons, ensuring exceptional durability and high compression for an aggressive power curve. The integrated S&S oil pump and cam plate system boasts independent scavenge sections for the flywheel cavity and cam chest, along with debris screens and a magnet in the cam chest, all designed to prevent contaminants and ensure optimal oil flow and engine longevity. An adjustable pressure relief valve allows for fine-tuning even after installation, providing precise control over your oil system. The kit includes S&S Quickee pushrods with chrome pushrod tubes and premium tappets for quick, reliable valvetrain operation. High-performance conical single wire S&S valve springs are compatible with cams up to 0.605" lift, perfectly complementing the included HPT496 cam, which is specifically engineered for big bore applications. A multi-layered steel (MLS) head gasket ensures a superior seal, while hard anodized, black coated billet aluminum tappet cuffs offer enhanced strength and a premium finish. Proudly made in the USA, this kit retains stock engine height, works seamlessly with stock crankcases, and is compatible with both stock and S&S roller rocker arms, preserving your original engine serial numbers.

Features & Highlights

• Massive Displacement Upgrade: Transform your M8 114"/117" with 4.50" stroke into a powerful 132" engine with a direct bolt-on big bore kit, requiring no case machining.
• Superior Durability & Power: Features 4.320" big bore cylinders and high-performance 11.0:1 forged pistons for exceptional compression and longevity.
• Advanced Oil System Protection: Equipped with an S&S oil pump/cam plate featuring independent scavenge sections, debris screens, a cam chest magnet, and increased oil flow capacity for ultimate engine lubrication and protection.
• Optimized Valvetrain Components: Includes HPT496 cam, S&S valve springs (compatible with up to 0.605" lift cams), Quickee pushrods with chrome tubes, and premium S&S tappets for peak performance.
• Seamless Integration & Quality: Retains stock engine height, works with stock crankcases, compatible with stock and S&S roller rocker arms, and preserves original engine serial numbers. Includes a 132 cam cover badge.
• Premium Construction: Utilizes a multi-layered steel (MLS) head gasket and billet aluminum, hard anodized black coated tappet cuffs for robust and reliable operation.
• Made in the USA: Engineered and manufactured in the United States, ensuring top-tier quality and craftsmanship.

Technical Specifications

• Type: Engine
• Model: Performance Kit
• Style: HPT496 Series
• Units: Kit
• Bore Size: 4.320"
• Color/Finish: Black, Highlighted Fins
• Displacement: 132"
• Cam Drive Type: Gear
• Cooling System: Water Cooled
• Compression Ratio: 11.0:1
• Vendor Part Number: 310-1403