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ARP Adjustable 7/16 12pt Perma-Loc Rocker Arm Nut Kit - arp300-8245 missing-image -cc Gauges & Pods::Gauges 2004-2006One 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).
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US$ 69.00
