S&S Cycle Twin Cam Cylinder Head - 79cc - Silver - 106-3227

Upgrade your engine's performance with the S&S Cycle 79cc Super Stock® Cylinder Heads. These heads are designed to boost power and efficiency for stock 88" to 103" engines, as well as slightly modified engines up to 110". Experience enhanced throttle response and overall improved engine performance with these high-quality cylinder heads.

Description

The S&S Cycle Super Stock® Cylinder Heads feature moderately sized 1.940" intake and 1.575" exhaust valves, which are crucial for maintaining optimal port velocity in smaller displacement engines. This design ensures excellent low-end and midrange response. Equipped with S&S® high-performance valve springs, these cylinder heads accommodate camshafts with lifts up to .650". The combustion chamber design delivers a significantly higher, yet manageable, compression ratio, enhancing overall engine output. These heads are machined for S&S® electric or manual compression releases and are compatible with stock rocker boxes, exhaust systems, and intake manifolds. The cylinder heads can be decked up to .060" to further increase compression, though this requires re-machining of the piston valve pockets. Made in the USA from high-quality aluminum, these cylinder heads offer durability and performance you can rely on.

Features & highlights

• Fully assembled with springs and valves for easy installation.
• Optimized for stock 88" to 103" engines and modified engines up to 110".
• 1.940" intake and 1.575" exhaust valves enhance port velocity for improved throttle response.
• High-performance valve springs support camshafts with up to .650" lift.
• Combustion chamber design provides a higher compression ratio for increased power.
• Compatible with stock rocker boxes, exhaust, and intake manifolds for straightforward integration.
• Machined for S&S® electric or manual compression releases, offering added convenience.

Technical specifications

• Brand: S&S Cycle
• Part Number: 09300063
• Displacement: 79cc
• Material: Aluminum
• Finish: Silver, Powder-Coated
• Units: Pair

Important to know

• Should not be used with any piston having a pop-up dome.
• Not compatible with '14-'16 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors or '17 and later touring models.
• Must use the included S&S valve cover gasket kit with stock rocker covers.
• Must use S&S rocker boxes if S&S compression releases are used.