PRW’s bushed LS rocker arms are a new casting that is a direct replacement for the stock rocker arm. These rocker arms use a bushing instead of a bearing, so they will last longer and be able to take a larger load. PRW is offering these bushings for the LS1 and LS3-based engines.
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GM's legendary Milford Proving Ground celebrates over 100 years of testing, performance, and innovation.
