S&S Cycle Sidewinder Big Bore Kit - Black - 910-0651

Transform your Harley-Davidson engine with the S&S Cycle Bolt-In Sidewinder® 4" Big Bore Kit. This kit delivers a significant power increase without the need for extensive engine modifications, making it ideal for riders seeking enhanced performance and reliability.

Description

The S&S Cycle Sidewinder® Big Bore Kit offers a straightforward path to increased displacement and power. Designed for bolt-in installation, it eliminates the need for machining, balancing, or splitting the crankcases, allowing for installation with the engine still in the frame. The kit's cast ductile iron sleeves, encased in cast aluminum, ensure superior heat transfer, maintaining optimal engine temperature under demanding conditions. Boosting 88" engines to 100" and 96"/103" engines to 110", this kit provides a noticeable improvement in torque and horsepower. Featuring a 10.5:1 compression ratio (with stock 85cc heads), it delivers a streetable and dependable engine that responds exceptionally well to performance cams, making it a top choice for motorcycle enthusiasts.

Features & highlights

• Boost your engine's displacement to 110" without extensive modifications.
• Enjoy enhanced heat transfer thanks to the cast ductile iron sleeves in cast aluminum.
• Experience a noticeable increase in horsepower and torque.
• Benefit from a straightforward bolt-in installation process.
• Achieve a dependable and streetable engine with a 10.5:1 compression ratio.
• Maximize performance with compatibility for performance cams.
• Complete kit includes all necessary components for a seamless upgrade.

Technical specifications

• Brand: S&S Cycle
• Product Name: Cylinder and Piston Kit
• Type: Big Bore Kit
• Displacement: 110"
• Bore Size: 4.000"
• Stroke Length: 4-3/8"
• Compression Ratio: 10.5:1
• Color/Finish: Black
• Units: Kit

Important to know

This kit is not for use with S&S 79cc heads.