Comp Cams Rocker Arm Stud - 8 x 1.25 mm Base Thread - 8 x 1.25 mm Top Thread - 1.750 in Effective Stud Length - Nuts Included - Steel - Black Oxide - Mopar Gen III Hemi - Set of 20-4589-KIT--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO