S&S Cycle 124" Big Bore Power Package Engine Kit

Transform your motorcycle's performance with the S&S Cycle 124" Big Bore Power Package, a comprehensive bolt-on engine upgrade designed to deliver unparalleled power and torque. This kit provides a significant displacement increase, enhancing your riding experience without requiring complex case machining.

Description

This S&S Cycle 124" Big Bore Kit is engineered for motorcycle enthusiasts seeking a substantial boost in engine performance. As a true bolt-on power package, it eliminates the need for any case machining, simplifying installation while maximizing displacement to a powerful 124 cubic inches. The kit features high-strength forged pistons and updated fins for improved cooling, ensuring durability and consistent performance under demanding conditions. At its core is the S&S 550 camshaft, specifically designed for big bore applications, complemented by high-performance conical valve springs capable of handling up to 0.605" lift. The advanced oil pump and cam plate, precision-machined from billet aluminum, offer a remarkable 44% increase in oil supply flow and a 58% increase in scavenge flow, optimizing lubrication and cooling. With Quickee pushrods, meticulously hand-assembled tappets for reduced valvetrain noise, and hard-anodized billet tappet cuffs for high RPM stability, this engine upgrade kit ensures a reliable and exhilarating ride. Proudly made in the USA, this power package delivers a robust 11.1:1 compression ratio for explosive power.

Features & Highlights

• Effortless Bolt-On Installation: Upgrade your engine without the hassle of case machining, making this 124" power package a straightforward and accessible performance enhancement.
• Optimized Power & Durability: Experience a massive boost in displacement to 124 cubic inches, driven by high-strength forged pistons and an S&S 550 camshaft, all cooled by updated fins for sustained high performance.
• Advanced Oil System: Benefit from a precision-machined billet aluminum oil pump and cam plate, boasting a 44% increased supply flow and 58% increased scavenge flow, featuring removable passage plugs, independent scavenge sections, and debris screens with a magnetic trap for superior engine protection.
• Reduced Valvetrain Noise & Enhanced Stability: Quickee pushrods and hand-assembled tappets ensure quieter operation from start-up, while billet aluminum tappet cuffs provide critical stability for high lift and high RPM situations.
• High-Performance Valve Springs: Includes conical single wire valve springs designed to work seamlessly with camshafts up to 0.605" lift, ensuring optimal valve control and engine longevity.
• Proudly Made in the USA: Rely on the quality and craftsmanship of components manufactured in the United States, reflecting S&S Cycle's commitment to excellence.

Technical Specifications

• Product Name: Performance Kit
• Type: Big Bore
• Model: Power Package
• Units: Kit
• Displacement: 124"
• Bore Size: 4.250"
• Stroke Length: 4.375"
• Compression Ratio: 11.1:1
• Cam Drive Type: Chain
• Cooling System: Water Cooled
• Color/Finish: Black, Highlighted Fins
• Features: Quickee Pushrods w/Chrome Covers, Includes Cam Chain Tensioner
• Vendor Part Number: 310-1050C

Important to Know

• Not compatible with any Trike models.
• Intake and rocker cover gaskets are not included and must be purchased separately.

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