Manley 221424-16 Dual Valve Spring Set for High-Performance Engines, 647 lb/in Spring Rate, 1.070 in Coil Bind, 1.640 in Outer Diameter

The Manley 221424-16 dual valve spring set is designed for high-performance engine applications requiring reliable valve control and durability. Each set includes 16 springs engineered to deliver a spring rate of 647 pounds per inch, ensuring optimal valve operation at high RPMs and under demanding conditions. The springs feature a 1.070-inch coil bind height, providing precise spring tension and preventing coil interference during operation. With an outer diameter of 1.640 inches, these springs are compatible with a variety of performance cylinder heads and valve configurations. Constructed from high-quality materials, the springs are built for longevity and consistent performance under rigorous conditions.

Features:

• Dual Spring Design: Provides increased stability and control for high-performance valve operations

• Spring Rate: 647 pounds per inch for robust valve actuation

• Coil Bind Height: 1.070 inches to prevent coil interference

• Outer Diameter: 1.640 inches for compatibility with performance cylinder heads

• Set of 16 springs for complete valve train coverage