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The COMP Cams Ultra Pro Magnum XD Rocker and Pushrod Kit for Chevrolet 396–454 Big Block engines includes 1.7 ratio Ultra Pro Magnum XD rocker arms, 8.280" intake and 9.250" exhaust Magnum pushrods. Packaged as a matched set, it supplies the specified rocker ratio and intake/exhaust pushrod lengths to simplify big block Chevrolet valvetrain installation.
COMP Cams Rocker/Pushrod Kit CB Ultra Pro
