Crower 84302LW980 Features:

Crower 84302LW980 engineered kit for Big Block Chevy 396, 427, and 454 mechanical flat tappet valvetrains. Includes lightweight Coolface solid lifters, dual valve springs, retainers, and seals for a complete valvetrain package. Dual springs deliver 119 lb seat pressure at 1.900 in. and 359 lb nose pressure at 1.350 in. for high-rpm stability. Recommended for street applications and built to support 7000 plus rpm with Crower pro-street solid lifter camshaft setups.

Kit Chevy 396-454 Dual Sp Dual Spring Coolface Solid Features:

• Dual-spring valvetrain kit for 396-454 big-block Chevy, matched for mechanical flat-tappet solid lifter camshaft setups and stable high-rpm operation
• Lightweight Coolface solid lifters reduce valvetrain mass, support oil control at the lifter face, and help maintain durability in performance street use
• 119 lb seat pressure at 1.900 in., 359 lb nose pressure at 1.350 in., and 1.080 in. coil bind for controlled valve motion at 7000-plus RPM
• Includes 16 dual springs, 16 retainers, 16 valve seals, and 16 lightweight solid lifters for a complete camshaft-matched valvetrain package
• Built to complement pro-street and custom-ground solid lifter cam upgrades, improving mid-to-top-end power and valvetrain stability; machine work required