Harland Sharp SLS17A Rocker Arm Set (GM LS1/LS2/LS6 1.7 Ratio Adj.)

Using the very latest manufacturing technology and only the very finest materials, the original series rockers incorporate race-proven enhancements, such as improved strength, performance, and lighter weight over conventional rocker arm designs. Adjustable rocker arms. Not designed to be a replacement for the factory rocker system. Require shorter pushrods and additional clearance to the cylinder head.