Crower 74708B Features:

Billet steel shaft-mount rocker system for BIG BLOCK CHEVY engines with DART Race Series 320, 350, and 360 aluminum cylinder heads Built with 1-piece intake stands to increase valvetrain rigidity and reduce deflection under high rpm and heavy valve spring loads Designed for severe-duty racing applications requiring stable rocker geometry with aggressive camshaft lift profiles CROWER part number 74708B delivers shaft-mounted valvetrain control for professional engine builders and race teams

Billet Shaft Rockers Dart Steel Billet Shaft-mount BBC For Features:

• Billet steel shaft-mount rockers for DART Race Series 320, 350, and 360 BBC aluminum cylinder heads, severe-duty valvetrain stability
• Heavy-duty 1-piece intake stands for increased rigidity, reduced deflection, and more consistent rocker geometry at high rpm
• Built for extreme valve spring pressures and aggressive cam lifts in big-block Chevy racing applications, maximum reliability
• Premium race-ready rocker system for professional engine builders and competition engines demanding zero-compromise valvetrain control
• Crower 74708B design supports high-rpm durability and precise valve motion in shaft-mount BBC DART head combinations