COMP Cams High Energy Nitrided Rocker Set w/ 1.7 Ratio big-block w/ 7/16" Stud for 183 vehicles

These nitrided COMP Cams High Energyâ„¢ Steel Stud Mount Rocker Arms designed for 1965-87 Chevy 396-454 Applications feature a 7/16" Stud diameter and 1.7 ratio. High Energyâ„¢ Rockers help eliminate the noise and slop associated with older worn and high mileage stock Rocker arms. With a long slot for higher than stock lift Ca mshafts, these Rocker arms are an excellent replacement choice for engine rebuilds using either stock or High Energy Camshaftsâ„¢. These Rockers have been nitrided to increase surface hardness for improved initial and long-term wear characteristics. The nitriding process increases hardness by ca using an infusion of nitrogen molecules into the material's surface. This improves both the lubricity and wear resistance of the material.< ul>< li> Excellent replacement Rocker arms for engine rebuilds with a stock or High Energy Camshaftâ„¢</li>< li> Help to eliminate noise and slop associated with worn or high mileage stock Rocker arms</li>< li> Include adjusting nuts and pivot balls where required</li>< li> Feature a long slot for higher than stock lift Camshafts</li>< li> Nitrided Rocker arms designed for higher spring pressures and hardened Pushrods</li></ul>