S&S Cycle 124 Big Bore Power Package Engine Kit

Elevate your motorcycle's performance with the S&S Cycle 124 inch Power Package Big Bore Kit, engineered to deliver a significant boost in power and torque. This comprehensive bolt-on engine upgrade transforms your ride, providing the exhilaration you demand.

Description

Unleash extreme power with the S&S Cycle 124 inch Power Package, a complete engine upgrade designed for motorcycle enthusiasts seeking a substantial performance increase. This meticulously crafted kit boasts a massive 124" displacement, achieved through a 4.250" bore and 4.375" stroke, paired with an aggressive 11.1:1 compression ratio. Engineered for a straightforward installation, it's a true bolt-on solution that requires absolutely no case machining. At its core are durable forged pistons and an optimized oil-cooled system, ensuring reliability under high-performance demands. The kit includes a precision-machined billet aluminum oil pump/cam plate, featuring independent scavenge sections for the flywheel cavity and camchest, and a remarkable 44% increase in supply side flow with a 58% increase in scavenge side flow. Debris screens and a camchest magnet further protect your engine. The included S&S 550 camshaft is specifically designed for big bore applications, complemented by Quickee pushrods, hand-assembled tappets for reduced valvetrain noise, and billet aluminum tappet cuffs that ensure stability in high-lift and high-RPM situations. High-performance conical single wire valve springs, compatible with camshafts up to 0.605" lift, complete this robust package, all proudly made in the USA.

Features & Highlights

• Effortless Performance Upgrade: Experience a significant power boost with this bolt-on 124" Big Bore Kit, requiring no case machining for a straightforward installation.
• Optimized Engine Durability: Features robust forged pistons, updated fins for improved cooling, and billet aluminum construction for key components, ensuring longevity and reliability.
• Advanced Oil Management System: The precision-machined oil pump/cam plate offers a 44% increase in supply flow and 58% increase in scavenge flow, with independent sections, debris screens, and a camchest magnet for superior lubrication and protection.
• Superior Valvetrain Performance: Includes Quickee pushrods, hand-assembled tappets for reduced noise and low leak-down rates, billet tappet cuffs for high-RPM stability, and an S&S 550 camshaft designed specifically for big bore applications.
• High-Performance Valve Springs: Conical single wire valve springs are included, designed to work effectively with camshafts up to 0.605" lift, complete with top collars, keepers, valve seals, and bottom collars.
• Proudly Made in the USA: Benefit from S&S Cycle's commitment to quality and craftsmanship with components manufactured in the United States.

Technical Specifications

• Type: Big Bore
• Model: Power Package
• Units: Kit
• Bore Size: 4.250"
• Color/Finish: Black, Non-Highlighted Fins
• Displacement: 124"
• Stroke Length: 4.375"
• Cam Drive Type: Chain
• Cooling System: Oil Cooled
• Compression Ratio: 11.1:1

Important to Know

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