Aluminum 1.6:1 Ratio Small-Block Roller Rocker Arm Kit - 19210729

Control engine valve opening and closing with the Chevrolet Performance Rocker Arm Kit. Engine rocker arms open and close engine valves at the correct moment of the cycle. The small-block rocker arm kit is full roller, made of aluminum, features a 1.6:1 ratio, and includes sixteen rocker arms and nuts. When using a high-lift camshaft, check the valve spring coil bind, retainer-to-seal clearance, and piston-to-valve clearance. Check for adequate pushrod clearance when using on cast-iron heads. It may be necessary to remove valve cover drippers for proper rocker arm clearance. No matter what you're driving or what you're building, Chevrolet Performance has a wide range of engines, parts and other accessories to help you fulfill your project-vehicle dream.