Harland Sharp 3/8" Rocker Arm Adjusting Nut - 7/16" Stud 21411607 Use w/ AN O-Ring Port

Use w/ AN O-Ring Port Adapters

Saves replacing again and again

Edelbrock AVS2 Series or Performer Series 500-650cfm

Hydraulic - Thumpr : High performance street

Ford 351W Main Support

Harland Sharp 3/8" Rocker Arm Adjusting Nut - 7/16" Stud 21411607 Use w/ AN O-Ring PortProduct Description: Rocker Arm Nut Polylock 7 16 20 in Thread 0. 600 in Shank Diameter 1. 120 in Long Chromoly Black Oxide Aluminum Rockers Set of 4 Since the 1950s, Harland Sharp is the leader in roller rocker arm technology. Sharp manufactures roller rockers and rocker components for a variety of applications. Their rockers are made from lightweight aluminum and anodized for increased durability.