COMP Cams offers these pivots balls as direct replacements for those used in their Magnum rockers.

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COMP Cams Rocker Arm Stud Girdle Nut, Roller Rockers for 7/16 in. Stud Ultra Pro Magnum Rockers

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Manley Aluminium Rocker, Suit Big Block Chev, 396-454, 1.8 X 7/16", Each

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Trick Flow Rocker Arm Stud Girdle, Aluminum, Blue, 7/16 in.-20 Thread, For Chevrolet, Big Block, Kit

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COMP Cams Rocker Arm, Ultra Pro Magnum XD, 1.55 Ratio, For Chevrolet V6 and SBC w/ 3/8 in. Stud, Full Roller, Steel, Each

COMP Cams Rocker Arm, Ultra Pro Magnum XD, 1.55 Ratio, For Chevrolet V6 and SBC w/ 3/8 in. Stud, Full Roller, Steel, Each

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COMP Cams Rocker Arm, Ultra Pro Magnum, Full Roller, Chromoly Steel, Self-Aligning 1.6 Ratio, SBC/V6 3/8 in. Stud, Set of 16

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