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Upgrade your Twin Cam engine with the S&S Cycle 106-3233 Super Stock Cylinder Heads, designed for stock 88 to 103-inch engines and suitable for slightly modified units up to 110 inches. These heads arrive fully assembled with springs and valves, ensuring a straightforward installation process. Their moderately sized 1.940-inch intake and 1.575-inch exhaust valves help maintain port velocity in smaller displacement engines, providing excellent low and midrange response for enhanced throttle performance.
Constructed with a high-performance combustion chamber, these heads deliver a significantly higher compression ratio compared to stock units while remaining manageable for reliable operation. They can be decked up to 0.060 inches to increase compression further, although piston valve pockets will need to be re-machined to accommodate this modification. Compatible with stock rocker boxes, intake, and exhaust manifolds, these heads are designed for easy integration into your existing setup.
Machined to accommodate S&S electric or manual compression releases, the cylinder heads include features like machined surfaces for precise fitment and compatibility with S&S valve cover gasket kits. They are made in the USA with quality craftsmanship, ensuring durability and performance. Note that these heads are not suitable for use with piston designs featuring a pop-up dome and are incompatible with certain models, including 2014-2016 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors, and 2017 touring models. Proper installation requires using S&S rocker boxes when compression releases are installed to ensure optimal operation and sealing.
Overall, the S&S Cycle Twin Cam 106-3233 Super Stock Cylinder Heads offer a significant upgrade for enthusiasts seeking improved power, response, and efficiency in their Harley-Davidson Twin Cam engines. Their design and features make them a reliable choice for performance-oriented riders aiming to maximize engine output while maintaining compatibility with existing components.
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