S&S Cycle 900-0412 Super Stock Cylinder Head Kit for Harley-Davidson

The S&S Cycle 900-0412 Super Stock Cylinder Head Kit delivers improved performance in a stock-appearing package for Harley-Davidson motorcycles. Engineered by S&S Cycle, a leader in high-performance V-Twin components, these cylinder heads offer enhanced airflow and power output while maintaining compatibility with OEM components.

Key Features:

• Stock-appearing design with improved performance characteristics
• High-performance valve springs designed for camshafts with larger lifts
• Compatible with stock rocker boxes, intake manifolds, and exhaust systems
• Ideal for engines with increased displacement from larger stroke or bore
• Fully assembled with springs and valves for straightforward installation
• Made in the USA by S&S Cycle with premium aluminum construction

The S&S Super Stock cylinder heads work well with engines of stock displacement but are particularly well-suited for motors with performance upgrades. These heads are designed to bolt directly onto your engine using OEM-length head bolts and accept standard intake manifolds and exhaust components. Whether you're building a mild street motor or looking to extract more power from your existing setup, the S&S Super Stock heads provide proven performance gains with reliable quality.