Crower 84103RM3 Features:

Crower 84103RM3 valvetrain kit for Chevrolet big-block V8 366, 396, 402, 427, 454, and 502 applications Includes dual valve springs, retainers, and Rev-Max hydraulic lifters for matched valvetrain geometry Engineered for Chevy 396-454 builds and compatible with Rodeck V8 big blocks from 1965 to 1996 Rev-Max hydraulic lifters are safely rated for engine speeds exceeding 6,500 RPM in severe-duty use

Kit Chevy 396-454 Dual Sp Dual Spring Rev-max Hydraulic Features:

• Dual-spring valvetrain kit for Chevy big-block V8 366, 396, 402, 427, 454 and 502 applications, plus Rodeck V8 big blocks, optimized for aftermarket camshaft geometry
• Rev-Max hydraulic lifters for hydraulic flat-tappet setups, safely rated for engine speeds above 6,500 rpm to support stable valvetrain control in severe-duty and performance use
• Includes dual valve springs and retainers matched for Chevrolet 396-454 builds, helping simplify component selection for compatible big-block valvetrain upgrades and rebuilds
• 300 to 400 rpm potential gain over standard hydraulic flat-tappet lifters, promoting higher usable engine speed while maintaining hydraulic lifter street-friendly operation
• Engineered kit configuration for 1965-1996 Chevrolet big-block platforms, combining spring and lifter components for coordinated performance in high-rpm valvetrain applications