S&S Cycle Top End Kit for 80-Inch Big Twin Engines with 3.500-inch Bore (Models 1979-1984) - Part No. 90-0098

Product type: Big Bore Kits

Vendor: S&S CYCLE

SKU : 0903-1270

Regular price $3,659.95 USD

Lease to own Pay as low as $/week

Get Pre-approved

Top End Kit - 3.500" Bore - 80" Big Twin '79-'84 Upgrade your Harley-Davidson Big Twin engine with the S&S Cycle Top...

Lease for as low as $/week Apply Now

QUESTIONS & ANSWERS

Have a Question?

Be the first to ask a question about this.

Ask a Question

Category:

Details

Top End Kit - 3.500" Bore - 80" Big Twin '79-'84

Upgrade your Harley-Davidson Big Twin engine with the S&S Cycle Top End Kit, specifically designed for 1979 to 1984 models with a 80-inch displacement. This comprehensive kit includes a set of high-performance S&S Shovelhead-style cylinder heads, engineered for durability and optimal airflow to improve engine efficiency. The kit features pair of stock bore cylinders measuring 3-1/2 inches, perfectly suited for 80-inch engines, ensuring a reliable fit without the need for machine work. Forged 8:1 compression pistons come complete with rings and wrist pins, providing the power and performance expected from S&S components. These pistons are pre-fit to the cylinders, allowing for quick installation with minimal downtime and no additional machining required. The kit also includes manifold clamps, seals, all necessary hardware, and gaskets, making it a comprehensive solution for a top-end rebuild or upgrade. Made in the USA, this kit guarantees quality craftsmanship and reliable performance, helping you restore or enhance your motorcycle's power output while maintaining factory standards. Whether you're performing a routine overhaul or aiming to boost engine performance, this top-end kit provides everything needed for a professional and efficient installation, ensuring your Big Twin runs smoothly and efficiently for miles to come.

Features: