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Enhance your Harley-Davidson Shovelhead engine with the S&S CYCLE Roller Rocker Arms, part number 900-4320A. Crafted from heat-treated 8620 steel forgings, these rocker arms are designed for maximum strength and durability, ensuring reliable performance under demanding conditions. The 0.750-inch long S&S rocker arm bushings provide 50% more load-bearing surface compared to stock 0.500-inch bushings, which translates to improved longevity and stability for your engine components. These rocker arms are compatible with both stock and S&S billet Shovelhead-style rocker boxes, offering versatile upgrade options. The design allows for oiling through pushrods when used with S&S Shovelhead-style tappet guides and pushrods, promoting optimal lubrication and reducing wear. Each package includes two front and two rear rocker arms, providing a complete set for your engine rebuild or upgrade. Manufactured in the USA, these rocker arms are built to the highest quality standards, ensuring precise operation and long-term reliability. Some clearancing may be required when using stock rocker boxes, but overall installation is straightforward for experienced technicians. Whether you're restoring a vintage Shovelhead or seeking performance enhancements, these rocker arms deliver improved load capacity and durability to support your riding demands.
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