ARP Perma-Loc Rocker Arm Adjuster - For Stamped Steel Rocker Arms - 3/8"-24 Thread R040004L What's more

What's more

ARP stainless steel header studs are made from premium 300 stainless steel

Available in swivel and non-swivel designs

proven value combinations

ARP Perma-Loc Rocker Arm Adjuster - For Stamped Steel Rocker Arms - 3/8"-24 Thread R040004L What's moreA 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. ARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline.