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These COMP Cams set screws are specified as LS1 3/8-24 x .250 replacements for the adjustable Ultra Pro Magnum rocker arms used on GM LS1/LS2/LS6 and LS3 engines. They serve as direct-fit replacement hardware for COMP Cams rocker assemblies where that set screw size and thread specification are required, restoring proper fastening for adjustable rocker installations.
COMP Cams Set ScrewsLS1 3/8-24 X .250
