These COMP Cams High Energy Steel Stud Mount Rocker Arms designed for Chevy V8 265-400 Applications feature a 3/8" Stud diameter and 1.5 ratio. High Energy 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 Camshafts these Rocker arms are an excellent replacement choice for engine rebuilds using either stock or High Energy Camshafts.
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