S&S Cycle Super Stock Cylinder Heads For Harley Twin Cam 2006-2017

S&S Super Stock Heads: Re-Engineering Twin Cam Airflow for 2026

The S&S Cycle Super Stock Cylinder Heads for 2006-2017 Harley-Davidson Twin Cam models represent the 2026 pinnacle of top-end engineering. In a high-performance V-Twin engine, the cylinder heads are the most critical factor in determining power potential. Factory heads are often cast with restrictive ports that limit the engine’s ability to pull in air at higher RPMs. S&S addresses this by providing a ground-up redesign. These Super Stock units feature proprietary port shapes that increase air velocity without sacrificing the low-end torque essential for heavy 2026 cruisers. For the rider seeking secure, industrial-strength utility and an engine that pulls relentlessly to the redline, these heads are the definitive 2026 choice for Twin Cam applications.

Precision Valvetrain and Thermal Management

What sets the S&S Super Stock heads apart in the 2026 marketplace is the uncompromising quality of the integrated valvetrain. Each head comes fully assembled with premium stainless steel valves and high-performance valve springs. These springs are specifically rated to handle aggressive 2026 performance cams with up to .650″ lift, eliminating valve float and ensuring the high-output 2026 presence professional builders demand. The combustion chamber is meticulously shaped to provide a more efficient burn, which helps the engine run cooler during the intense heat of 2026 summer riding. This thermal resilience is vital for maintaining a perfect ring seal and protecting your investment. It is the perfect mechanical synchronization of modern aerodynamic science and proven American metallurgy.

Expert Installation & Performance Advice

As specialists in Twin Cam performance architecture, we recommend these heads for any 2026 build aiming for 100+ horsepower. Pro Tip: To truly maximize the potential of these heads, pair them with an S&S 106″ or 110″ Big Bore Kit and a high-flow intake system. Installation Note: While these heads are bolt-on, always verify your piston-to-valve clearance, especially if using high-compression forged pistons in your 2026 build. Maintenance Note: Use premium MLS (Multi-Layer Steel) head gaskets to ensure a laboratory-grade seal under high cylinder pressures. Safety Note: Upgrading to high-flow heads requires an immediate ECU recalibration via Dynojet Power Vision to ensure your 2026 engine receives the correct fuel and spark timing to prevent lean-running conditions.

The Professional Standard for Twin Cam Top-End Integrity

Choosing the S&S Cycle Super Stock Cylinder Heads means investing in unmatched mechanical stability and a refined power signature. It offers a unique combination of modern aerodynamic engineering and a robust design that honors the performance legacy of the Harley-Davidson brand. For the rider who wants a high-output 2026 presence and a flawless engineering finish, S&S Cycle is the unmatched leader. Flow the air, feel the power, and ride the distance.

Product Style	AmericanV-twin Item #	Catalog Number	Store Sku	MFR. Product #	Availability
Black	60029	434-571		106-3233	In Stock: Ships next business day
Silver	60028	434-570		106-3227	In Stock: Ships next business day