Manley Valve Spring, SPRING-1.437 DOUBLE - 22407-16

The Manley Street Master series delivers upgraded valve springs and components designed specifically for street-driven performance builds. Made from high-tensile chrome silicon steel with precision shot-peening and heat treatment for long life, Street Master parts offer improved valve control, reduced stress, and dependable performance over factory components. Ideal for naturally aspirated and mildly modified engines, these components give you stronger valve-train stability and smoother operation for spirited street driving without race-only complexity.

Features

• Chrome silicon material
• Designed for low stress and long service life

Specs

• Manley Valve Spring, SPRING-1.437 DOUBLE
• Product Market: Domestic
• Average Gram Weight: 121
• Product Type: Engine Valve Spring
• Valve Spring Outer Diameter: 1.437
• Valve Spring Inner Diameter: 0.720
• Valve Spring Quantity: 16
• Valve Spring Series: Street Master Series
• Valve Spring Material: Chrome Silicon
• Valve Spring Type: Double
• Valve Spring Coil Bind Height: 1.085
• Valve Spring Rate: 418
• Installed Pressure and Height: 135 @ 1.800
• Open Pressure and Height: 385 @ 1.200
• Industry: Automotive
• Title: Manley Valve Spring, SPRING-1.437 DOUBLE
• Prop 65 Yes/No: Yes
• Prop 65 (C, R or CR): CR
• Prop 65 - Short Label: Prop 65 Warning Label.JPG
• Engine Type: ICE
• Make: Chevrolet
• Engine: Big Block