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 Engine Kit. This comprehensive, bolt-on upgrade delivers an impressive 124 cubic inches of displacement, providing a significant boost in power and torque without requiring any case machining.

Description

Experience the ultimate in motorcycle engine upgrades with the S&S Cycle 124" Big Bore Power Package. Designed for enthusiasts seeking unparalleled performance, this complete kit is a true bolt-on solution, eliminating the need for complex and costly case machining. At its core are durable forged pistons, meticulously engineered for the increased power output of a 4.250" bore and 4.375" stroke, achieving a robust 11.1:1 compression ratio. The updated fins not only enhance the engine's aesthetic appeal with a black and highlighted finish but also improve cooling efficiency, crucial for high-performance applications. Proudly Made in the USA, this package ensures top-tier quality and reliability.

The kit integrates a high-performance oil pump and cam plate, precision-machined from billet aluminum to deliver superior oil flow – a 44% increase on the supply side and an astounding 58% increase on the scavenge side. Independent scavenge sections, removable passage plugs for servicing, debris screens, and a camchest magnet ensure optimal lubrication and debris management, extending engine life. The adjustable pressure relief valve allows for fine-tuning while installed. Paired with S&S Quickee pushrods and hand-assembled tappets, which reduce valve train noise and offer low leak-down rates, your engine will run smoother and quieter. Billet aluminum, hard-anodized black tappet cuffs provide enhanced stability for high-lift and high-RPM situations. The S&S 550 camshaft, specifically designed for big bore applications, works in harmony with the included high-performance conical single wire valve springs, compatible with camshafts up to 0.605" lift, ensuring a complete and optimized valve train solution.

Features & Highlights

• Effortless Power Upgrade: Achieve a massive 124 cubic inches of displacement with this direct bolt-on kit, requiring no case machining for a straightforward installation.
• Enhanced Durability & Performance: Features robust forged pistons and updated fins for improved engine cooling and a striking black and highlighted finish.
• Superior Oiling System: Includes a precision-machined billet aluminum oil pump/cam plate with 44% increased supply and 58% increased scavenge flow, independent scavenge sections, debris screens, and an adjustable pressure relief valve for optimal lubrication.
• Optimized Valve Train Components: Equipped with S&S Quickee pushrods, hand-assembled tappets for reduced noise and low leak-down, and billet aluminum tappet cuffs for high-RPM stability.
• Performance-Matched Camshaft & Springs: Features an S&S 550 camshaft designed for big bore applications, paired with high-performance conical single wire valve springs compatible with up to 0.605" lift.
• American Made Quality: Proudly manufactured in the USA, ensuring exceptional craftsmanship and reliability for your motorcycle.

Technical Specifications

• Type: Big Bore Kit
• Displacement: 124 cu. in.
• Bore Size: 4.250"
• Stroke Length: 4.375"
• Compression Ratio: 11.1:1
• Camshaft: S&S 550
• Valve Lift Compatibility: Up to 0.605"
• Cam Drive Type: Gear
• Cooling System: Oil Cooled
• Piston Type: Forged
• Finish: Black with Highlighted Fins

Important to Know

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

Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.

GLS home delivery costs DKK 59.

We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.

There is a 14-day return policy. Read more