ISR Performance Rocker Arm Stoppers - Nissan SR20DET Heavy Metal Off-Road Sierra Grande 1977 GMC C15

Sierra Grande 1977 GMC C15 Indy Hauler 1978 GMC C15 Street Coupe

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SSV 2014 - 2018 Chevrolet Silverado 1500 LT

Sometimes a quick spot cleaning doesn’t do the trick

ISR Performance Rocker Arm Stoppers - Nissan SR20DET Heavy Metal Off-Road Sierra Grande 1977 GMC C15ISR Performance Rocker Arm Stoppers Nissan SR20DET ISR Stainless Steel rocker arm stoppers for the RWD SR20DET. Unlike the mild steel HKS or Greddy ones, these stainless RAS will not chip nor rust under extensive use and abuse. RAS fit directly on S13, but can be used on all S14 S15 SR model too but needs to trim and cut out some materials underneath the valve cover near the oil cap area that hits the RAS. ** ** Legal only for use in competition