COMP Cams Rocker Arm Ball 3/8in

Designed for ultimate strength and locking force High Energy and Magnum polylocks are best for moderate lift and spring pressure Applications Hi-Tech Polylocks work well in all high end Race applications. The Stud girdle polylocks are precision ground for minimum runout and tapered for extra strength in the locking area. The 1400B-1 pivot ball replaces the pivot balls that come with our 3/8" stud Magnum roller tip rockers. See 1400B-16 for complete set of 16 pivot balls.