Proform Full Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Blue Anodized - Big Block Chevy - Set of 16 Seat Belt AFCO / Allstar / SCP

AFCO / Allstar / SCP / Winters 2-1/2 in Pin 5x5 Hubs

5/16 / 3/8 in Rocker Arm Studs

Headset or Helmet Extension

060 / Eight 0

Proform Full Roller Rocker Arm - 7/16 in Stud Mount - 1.70 Ratio - Blue Anodized - Big Block Chevy - Set of 16 Seat Belt AFCO / Allstar / SCPProform Extruded Aluminum Roller Rocker Arm 66913C 1. 7 Ratio 7 16 in. Stud Self Aligning Clamshell Package Precision machined Aluminum Lengthen Valve Train Component Life Reduce Wear On Valve Stem Tips Applications include: Bel Air, Biscayne, Blazer, Blazer K5, Brookwood, C10 Pickup, C10 Suburban, C15 Pickup, C15 Suburban, C15 C1500 Pickup, C15 C1500 Suburban, C1500 Pickup, C1500 Suburban, C20 Pickup, C20 Suburban, C25 Pickup, C25 Suburban, C25 C2500