Crower 68441-1 Features:

Crower 68441-1 dual LS valve spring for high-performance LS engine applications. Seat pressure rated at 145 lb at 1.800 in. installed height. Open nose pressure rated at 366 lb at 1.200 in. lift height. Coil bind height is 1.000 in. for valvetrain clearance reference.

Valve Springs Dual Ls 145 Lb Seat, 366 Lb Features:

• Dual-spring LS design for improved valvetrain control in high-performance applications and more stable operation at elevated rpm.
• 145 lb seat pressure at 1.800 in. helps maintain valve seating accuracy and supports consistent camshaft performance under load.
• 366 lb open pressure at 1.200 in. delivers stronger high-lift control to reduce valve float in demanding LS engine builds.
• 1.000 in. coil bind specification aids proper spring setup clearance and helps support reliable installation planning.
• Requires Super 7-degree keepers with matching retainers for correct fitment in compatible LS valvetrain combinations.