Crower 66000RM-1 Features:

Crower Rev-Max premium hydraulic flat tappet lifter for Chevrolet V8 applications, part number 66000RM-1 single unit 0.842 in. outside diameter, 1.690 in. seat height, and 94.2 g weight for precise valvetrain fit and function Slow leak-down design with ball-check oil control valving helps support high-rpm operation and reduce valve float Precision radius face, quick break-in capability, and higher oil feed range complement hydraulic camshaft setups

Hydraulic Lifters Premium Slow Leak-down, 0.842 In. Od, High-rpm Features:

• Slow leak-down design for high-rpm valvetrain stability and reduced valve float in Chevrolet V8 hydraulic flat tappet applications
• 0.842 in. OD with 1.690 in. seat height for Chevrolet V8 fitment and consistent lifter geometry during installation
• Ball-check oil control valving and higher oil feed range for dependable hydraulic action across demanding engine speeds
• Precision radius face and quick break-in characteristics to support cam compatibility and help reduce premature wear risk
• Single premium hydraulic flat tappet lifter, 94.2 g weight, recommended for new camshaft installs in high-rev Chevy builds