ARP Rocker Arm Nut - 3/8-24 in Thread - 0.600 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 HSSML11SASM61 Housing / Retaining Collar /

Housing / Retaining Collar / Rubber Boot Included

DSE/JRi aluminum body coilover shocks with 'Detroit Tuned' valving

our easy to use rotary switches adjust the RPM limit to an ultra fine resolution of 100 RPMs

Our ALL-NEW Extreme-Flow EFI Regulator now comes with -12 ports

547" long Magnum pushrods feature a durable

ARP Rocker Arm Nut - 3/8-24 in Thread - 0.600 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 HSSML11SASM61 Housing / Retaining Collar /A rocker arm adjuster that doesn't require special tools and won't work loose. Threads on the heat treated Perma Loc Adjusters are machined exactly perpendicular to the adjuster bottom. a set screw is also machined flush on the bottom. All of these features help eliminate setting valve lash on a regular basis. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Rocker Arm Nut 3 8 24 in Thread