Proform Full Roller Rocker Arm - 3/8 in Stud Mount - 1.50 Ratio - Blue Anodized - Small Block Chevy - Set of 16 31014P as the in and out

as the in and out ports are 3/8-24 inverted flare seats and do not require tube nut adapters to directly install 3/8 tubing with inverted flare 3/8-24 nuts

672 in Knurl

6061 billet alloy construction

but COMP Cams titanium retainers will not deform

Proform Full Roller Rocker Arm - 3/8 in Stud Mount - 1.50 Ratio - Blue Anodized - Small Block Chevy - Set of 16 31014P as the in and outProform Extruded Aluminum Roller Rocker Arm 66907C 1. 5 Ratio 3 8 in. Stud 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 Pickup, C25