S&S Cycle Twin Cam Super Stock Cylinder Head - 89cc - Black - 106-3240

Upgrade your engine's performance with the S&S Cycle 89cc Super Stock® Cylinder Heads. These heads are designed to deliver enhanced airflow and optimized combustion, providing a significant boost in power and torque for your motorcycle. Perfect for touring bikes and heavy vehicles, these cylinder heads ensure your engine performs at its peak.

Description

The S&S Cycle Super Stock® Cylinder Heads are engineered for '06-'16 engines with stock crankcases, making them ideal for a wide range of applications. These heads excel in both stock displacement engines and larger stroker or big bore engines up to 110". The optimized combustion chamber provides a slightly higher compression ratio, perfectly manageable for larger engines. Featuring large 2.000" intake and 1.605" exhaust valves, these cylinder heads maintain optimal port velocity, delivering excellent low and mid-range response while ensuring sufficient airflow for enhanced performance. Compatible with stock rocker boxes, exhaust, and intake manifolds, these heads offer a straightforward installation process. Made in the USA, these S&S Cycle cylinder heads guarantee superior quality and reliability.

Features & highlights

• Fully assembled with springs and valves for immediate installation.
• Optimized for '06-'16 engines with stock crankcases, offering broad compatibility.
• Ideal for touring bikes and heavy vehicles, enhancing overall performance.
• Large 2.000" intake and 1.605" exhaust valves ensure optimal airflow and responsiveness.
• High-performance valve springs accommodate camshafts with up to 0.650" lift.
• Intake ports flow 264 CFM, significantly outperforming stock heads at 182 CFM.
• Compatible with stock rocker boxes, exhaust, and intake manifolds for easy integration.

Technical specifications

• Brand: S&S Cycle
• Part Number: 09300066
• Displacement: 89 cc
• Intake Valve Size: 2.000"
• Exhaust Valve Size: 1.605"
• Material: Aluminum
• Finish: Powder-Coated, Wrinkle Black
• Units: Pair

Important to know

These cylinder heads are not compatible with S&S compression releases in late-model Twin Cams that have Harley-Davidson® ACR (Automatic Compression Release) already installed. They are also incompatible with '14-'16 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors, or '17 and later touring models. Not for models with OEM compression releases. If using S&S compression releases, S&S rocker boxes must be used.