Crower 74113F Features:

Stainless steel shaft-mounted rockers for SBC Iron Eagle cylinder heads with +.300 in. long valves and heavy-duty 5/8 shafts. CNC precision-machined from ball race alloy steel, double heat-treated, and micro-finish ground for rigidity and valvetrain accuracy. Fully rollerized precision needle bearing fulcrum supports high-rpm stability and dependable operation under severe racing conditions. Steel-based design resists sustained high operating temperatures and delivers longer service life than typical aluminum rocker systems.

Shaft Rockers For Iron Ea 5/8 In. Shafts, +.300 Features:

• Stainless steel shaft rockers for SBC Iron Eagle heads with +.300 in. long valves, optimized for steel-valvetrain rigidity and precise motion control
• Heavy-duty 5/8 in. shafts, CNC-machined ball-race alloy steel construction, double heat-treated and micro-finish ground for stability under load
• Fully rollerized precision needle-bearing fulcrum for reduced friction, improved high-rpm valve control, and smoother valvetrain operation
• High-temperature resilience and longer service life than aluminum rockers in severe racing and marine endurance applications
• Trackside-friendly shaft-mount design with aircraft-quality hardware for secure installation and trouble-free performance under extreme use