Crower 74526F125 Features:

Crower 74526F125 shaft rocker spacer for 5/8 in. valvetrain shafts. Dimensions: 5/8 in. shaft ID X 1 1/8 in. OD X .125 in. thickness. Designed for precise valve stem-to-rocker tip alignment in shaft rocker setups. Helps optimize valvetrain geometry to reduce friction, wear, and high-RPM instability.

Shaft Rocker Spacers 5/8 5/8 In. Shaft X 1 Features:

• 5/8 in. ID shaft rocker spacer for precise valvetrain shimming and accurate rocker arm positioning in custom high-performance shaft setups
• 1 1/8 in. OD X .125 in. thickness for controlled side clearance, consistent stack-up, and repeatable assembly geometry during engine builds
• Helps optimize valve stem-to-rocker tip alignment to reduce friction, support smoother motion, and limit valve guide and stem wear at high RPM
• Engineered for shaft-style valvetrains where proper rocker spacing improves geometry, promotes efficient valve action, and can help support horsepower
• Individual spacer for custom-fit adjustment, ideal for detailed valvetrain setup, service replacement, or precision assembly in performance applications