ARP Rocker Arm Nut - 3/8-24 in Thread - 0.550 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 R0400034XL Here is the replacement rubber

Here is the replacement rubber cover you need

Manifolds are coated to resist corrosion and are pre-drilled for pyrometer probes

Features Pre-Drilled Mounting Plates

s non-adjustable toe rods (TR002) are manufactured from heavy-duty 1x2-inch boxed steel tubing

to provide its customers with high demand products through the promotion of sales

ARP Rocker Arm Nut - 3/8-24 in Thread - 0.550 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 R0400034XL Here is the replacement rubberA 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