S&S Cycle Big Bore Piston Kit - 3.937" Bore - Standard - 920-0100

Upgrade your engine's performance with the S&S Cycle 107" Big Bore Forged Piston Kit. This kit allows you to maximize your engine's potential, delivering increased power and improved efficiency. Built with precision and durability in mind, this piston kit is a must-have for any serious motorcycle enthusiast.

Description

The S&S Cycle Big Bore Forged Piston Kit is designed to provide a significant boost in displacement and compression, resulting in noticeable gains in horsepower and torque. These pistons are forged from high-quality materials, ensuring exceptional strength and heat resistance, even under the most demanding conditions. Compatible with stock rods that have tapered wristpin ends, these pistons are designed for use with cylinders bored to a nominal diameter of 3.937" +/- 0.0005" to achieve optimal clearance. Transform your ride with the enhanced performance and reliability of S&S Cycle.

Features & highlights

• Forged construction ensures superior strength and durability.
• Designed for use with stock rods that have tapered wristpin ends.
• Increases displacement to 107" for enhanced power.
• Achieves a 10.4:1 compression ratio for improved engine efficiency.
• Allows stock cylinders to be bored for larger piston compatibility.
• Maintains precise cylinder clearance when bored to the specified diameter.

Technical specifications

• Brand: S&S Cycle
• Bore Size: 3.937"
• Displacement: 107"
• Compression Ratio: 10.4:1
• Piston Material: Forged
• Stroke Length: 4-3/8"

Important to know

Stock cylinders must be bored to the nominal diameter of 3.937" +/- 0.0005" for correct piston clearance. Verify compatibility with your specific engine configuration before installation.