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

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COMP Cams Rocker Arm, Ultra Pro Magnum XD, 1.7 Ratio, For Chevrolet Big Block w/ 7/16 in. Stud, Full Roller, Steel, Each

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Trick Flow Rocker Arms, 1.73 Ratio, 7/16 in. Stud, Full Roller Design, Aluminum, For Ford 351C, 351M/400, and 429/460, Set 16

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Proform , Super-Street Chevy Aluminum Roller Rockers, 1.5 Ratio; 7/16" Stud

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COMP Cams Rocker Arm, Ultra Pro Magnum XD, 1.73 Ratio, For Chevrolet Big Block w/ 7/16 in. Stud, Full Roller, Steel, Set of 16

COMP Cams Rocker Arm, Ultra Pro Magnum XD, 1.73 Ratio, For Chevrolet Big Block w/ 7/16 in. Stud, Full Roller, Steel, Set of 16

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