Crower 74703B Features:

Billet steel shaft rockers for BIG BLOCK CHEVY engines with Brodix BB-3 Extra BP BB3 aluminum cylinder heads Includes 1-piece intake stands for a precise bolt-on fit with no additional cylinder head machine work required Rigid shaft-mount valvetrain design helps improve rocker stability and valvetrain accuracy at high RPM Engineered by Crower for dedicated BB CHEVY performance applications requiring BB-3 Extra head compatibility

Billet Shaft Rockers Bb C Big Block Chevy, Brodix Features:

• Billet steel shaft rockers for BIG BLOCK CHEVY, Brodix BB-3 Extra BP BB3 aluminum heads, 1-piece intake stands included
• Bolt-on shaft-mount system eliminates additional cylinder head machine work for cleaner, more precise installation
• High-rigidity billet steel construction for improved valvetrain stability, geometry control, and accuracy at high RPM
• Application-specific fit for BIG BLOCK CHEVY with Brodix BB-3 Extra BP BB3 aluminum cylinder heads and intake stand setup
• Optional needle-bearing roller tip compatibility for reduced friction, higher RPM potential, and longer valve spring life