S&S CYCLE Die Cast Rocker Box for Twin Cam Engines (Part 90-4110)

The S&S CYCLE Die Cast Rocker Box (Part 90-4110) is designed for reliable performance on Twin Cam motorcycle engines. Crafted from high-quality die-cast aluminum, this rocker box features a positive O-ring seal that ensures a leak-free operation, reducing maintenance and enhancing engine longevity. It includes essential components such as rocker boxes, gaskets, and mounting bolts, simplifying installation and assembly. Rocker arm supports are included, providing a complete solution for your engine rebuild or upgrade. Made in the USA, this component is engineered for durability and precision fitment, capable of being installed with the stock engine in most applications without modifications. Please note that the assembler must supply rocker shafts and rocker arms for all rocker boxes, and it is the engine builder's responsibility to verify all operating clearances for optimal performance and safety. This rocker box is compatible with a range of Twin Cam models, making it an excellent choice for those seeking a high-quality, reliable part to improve or restore their motorcycle's engine. Its sturdy construction and precise engineering help maintain proper valve train function, ensuring smooth operation and extended service life for your engine. Whether you're performing a rebuild or upgrading your existing setup, the S&S CYCLE Die Cast Rocker Box offers a dependable and easy-to-install solution for serious motorcycle enthusiasts and professional builders alike.

Features:

• Positive O-ring seal for leak-free operation

• Includes rocker boxes, gaskets, and mounting bolts

• Rocker arm supports included

• Made in the USA with durable die-cast aluminum

• Capable of installation with the stock engine in most applications

• Requires assembler to supply rocker shafts and rocker arms

• Engine builder responsible for verifying operating clearances