S&S Cycle Sidewinder Engine Performance Kit - Black - 91-7661

Unleash the full potential of your Harley-Davidson engine with the S&S Cycle 96" Sidewinder Engine Performance Kit. This kit transforms your stock 80" engine into a powerful 96" powerhouse, delivering significant gains in torque and horsepower. Experience the thrill of enhanced acceleration and improved overall performance.

Description

The S&S Cycle 96" Sidewinder Kit is engineered for performance and durability. It features a robust flywheel assembly complete with S&S heavy-duty connecting rods and mainshafts. The included 3.625" Sidewinder® big bore cylinders, combined with 9.75:1 compression ratio pistons, optimize combustion efficiency for maximum power output. This kit is designed for enthusiasts seeking a significant upgrade to their engine's performance. Proper installation requires cases to be bored to accept the 3.625" cylinders and a minor crankcase clearancing for the crankpin nut.

Features & highlights

• Transforms your 80" engine to a high-performance 96" displacement.
• Includes 3.625" Sidewinder® big bore cylinders for increased airflow and power.
• Features 9.75:1 compression ratio pistons for optimized combustion.
• S&S heavy-duty connecting rods and mainshafts ensure durability and reliability.
• Complete with head, base, and exhaust gaskets for a hassle-free installation.
• Proudly made in the USA, ensuring top-quality craftsmanship.

Technical specifications

• Brand: S&S Cycle
• Displacement: 96"
• Bore Size: 3.625"
• Stroke Length: 4.625"
• Compression Ratio: 9.75:1
• Type: Engine Kit
• Color/Finish: Wrinkle Black

Important to know

This kit requires the use of '77-'89 style pinion gear and oil pump drive gears when installing S&S flywheels in '90-'99 engines. Cases must be bored to accept 3.625" bore cylinders, and a minor crankcase clearancing operation for the crankpin nut must be performed. Manifold, pushrods, and pushrod clips are not included.