Crower 74182B Features:

Billet steel shaft-mount rocker arms for SMALL BLOCK CHEVY BRODIX 13° cylinder heads with 4.500 in. bore spacing, for WPFF13STD applications Precision-engineered Crower rocker system delivers extreme rigidity, valvetrain accuracy, and optimized moment of inertia in high-rpm use Stainless steel construction resists strength loss under sustained high temperatures for longer service life than standard aluminum components Built for demanding dirt late model and marine endurance racing where reliability, consistent valvetrain control, and durability matter most

Billet Shaft Rockers Sb C SBC Brodix 13° 4.500 Features:

• Stainless steel shaft-mount rocker arms for SBC with BRODIX 13° cylinder heads and 4.500 in. bore spacing fitment
• Billet construction for extreme rigidity, valvetrain accuracy, and optimized moment of inertia under high-rpm loads
• High-temperature strength retention for longer service life than standard aluminum rockers in endurance racing use
• Track-side-friendly design for easier installation, valve adjustment, and routine maintenance in competitive applications
• Purpose-built for dirt late model and marine endurance racing with precise fit for WPFF13STD cylinder head layouts