781169 Individual Parts S S Rocker Arm Stud Kit

The S&S Cycle Top End Guardian Kit provides a comprehensive solution for reinforcing the Milwaukee-Eight engine's upper valvetrain. This kit replaces standard components with heavy-duty rocker arm shafts and a dedicated rocker arm stud kit designed to prevent stress-related damage to the cylinder head towers. The included head bolts are manufactured from 8640 heat-treated steel, offering an ultimate tensile strength of 200,000 psi with cold-rolled threads and formed washers for repeated use. By incorporating roller rocker arms, this set reduces the lateral stress typically associated with high-lift camshafts and sustained high-RPM operation. S&S Cycle engineered these components to address known vulnerabilities, ensuring the top end remains stable under increased performance demands.