S&S Cycle 128" Big Bore Kit for 114/117 CVO Models

Unlock the full potential of your Harley-Davidson engine with the S&S Cycle 128" Big Bore Kit. Engineered to transform your 114" or 117" CVO model, this premium performance kit delivers a significant engine upgrade to 128 cubic inches, providing a dramatic boost in horsepower and torque for an exhilarating ride.

Description

Experience unparalleled power and a noticeable performance improvement with this comprehensive S&S Cycle 128" Big Bore Kit. Designed for a straightforward installation, this bolt-in kit eliminates the need for complex case machining, making your engine upgrade process smoother and more efficient. At its core are high-strength forged pistons, meticulously crafted to withstand the demands of increased power and ensure long-lasting durability. The kit boasts an aggressive 11.1:1 compression ratio, optimized for maximum energy conversion and thrilling acceleration across the RPM range. With a precise bore size of 4.250" and a stroke length of 4.500", this performance package is engineered for optimal volumetric efficiency. Beyond raw power, the kit includes a sophisticated S&S 550 camshaft, an upgraded oil pump/cam plate, Quickee Pushrods with stylish chrome covers, high-quality tappets, and tappet cuffs, alongside robust valve springs. These components work in harmony to create a reliable and high-performing water-cooled system. Finished in an attractive Black Granite with highlighted fins, this kit not only enhances your motorcycle's performance but also its aesthetic appeal, contributing to better heat dissipation.

Features & Highlights

• Effortless Bolt-In Installation: Transform your engine without complex case machining, making this a straightforward upgrade for 114" and 117" CVO models.
• Massive 128 Cubic Inch Upgrade: Elevate your engine's displacement to a potent 128 cubic inches, delivering a substantial increase in horsepower and torque for thrilling acceleration.
• Premium Forged Piston Construction: Engineered with robust forged pistons, ensuring exceptional durability and reliability even under extreme performance demands.
• Integrated Performance Components: This comprehensive package includes an optimized oil pump/cam plate, S&S 550 camshaft, valve springs, Quickee Pushrods with Chrome Covers, and upgraded tappets/cuffs for a fully harmonized system.
• High 11.1:1 Compression Ratio: Experience aggressive throttle response and enhanced power output thanks to the optimized compression, designed for peak performance.
• Enhanced Aesthetics & Thermal Management: Featuring a sleek Black Granite finish with highlighted fins, this kit not only looks exceptional but also aids in efficient cooling for sustained performance.

Technical Specifications

• Model: Power Package
• Units: Kit
• Bore Size: 4.250"
• Color/Finish: Black Granite, Highlighted Fins
• Displacement: 128 cubic inches
• Product Name: Performance Kit
• Stroke Length: 4.500"
• Cam Drive Type: Chain
• Cooling System: Water Cooled
• Compression Ratio: 11.1:1
• Vendor Part Number: 310-1107C

Important to Know

• Not for 121" CVO models.
• 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