90-4120 SuperStock rocker cover gasket kit

When you're running S&S SuperStock cylinder heads on a 1999 to 2017 Twin Cam (excluding Twin-Cooled models), you need the right gaskets to keep things breathing correctly. This rocker cover gasket kit is specifically required for S&S head kits like the 531829 and 531833. It is designed to be used in conjunction with your original equipment rocker covers to ensure the engine's breathing system functions as intended. Using standard stock-style gaskets with these high-performance heads can restrict airflow and lead to internal engine damage. This kit provides the necessary components to seal your top end properly while maintaining the reliability and performance S&S is known for.