Curb Hoppers0My CartARP (Automotive Racing Products)Rocker Arm Stud - Pro Series - 8 mm x 1.25 Base Thread - 5/16-24 in Top Thread - 0.500 in Long - Chromoly for GM LS-Series - KitListing ID: 918645UPC: 672036042684Manufacturer Part Number: 2347207In Stock, 11 AvailableWill Ship Within 3 Days$140.10Brand NewCopyright (C) 2019-2023 Initial Holdings LLC dba Curb Hoppers. All Rights Reserved.