ARP Perma-Loc Rocker Arm Adjuster - For Stud Girdle Applications - 7/16"-20 Thread HASZ20POLAR 10 AN Male x 1/2

10 AN Male x 1/2 in NPT Male x 10 AN Male

AiM Dataloggers

the temperature gauge probe is no longer surrounded by coolant to detect the engine temperature

Slotted mounting holes on 3-1/4" centers work well with Allstar brake boosters

The Dynamic Air Scoop (D

ARP Perma-Loc Rocker Arm Adjuster - For Stud Girdle Applications - 7/16"-20 Thread HASZ20POLAR 10 AN Male x 1/2A 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 7 16 20 in Thread