Perma-Loc™ Rocker Arm Adjusters For Aluminum rocker

Perma-Loc™ Rocker Arm Adjusters For Aluminum rockerOne of the more aggravating things found in many high performance engines is constantly having to re adjust rocker arms. Until ARP introduced the patented Perma Loc adjuster, there wasnt a poly lock on the market that you didnt have to continually tighten. There are several important reasons why ARPs exclusive Perma Loc rocker arm adjusters wont loosen like others. First, the adjuster body is heat treated all the way through (not just case hardened).

They’re offered in a variety of heights to accommodate most any combination of carb and spacer

as well as protecting the threads in your engine block

drive toolMade from heat-treated 8740 chrome moly steel withheavy-duty black oxide finish

The ARP Stainless material is not affected by corrosion or extreme heat

Comes with a heavy-duty

Simply followmanufacturer’s instructions

Dodge/Cummins and Ford Power Stroke engines are all assembled using “Torque To Yield” (TTY) bolts and preloaded to yield and beyond (typically 100-110%)

Available to fit most any ring gear setup ranging from popular 9

each stud is placed verticallyinto special racks and precisely heat-treated to 190

Complete with washers and nuts where applicable

because it’stough on tooling

heat-treating to 190