1960-76 Mopar 383-440 Big Block (Except Hemi) Single Outer Valve Springs

Single Outer Valve Springs from COMP Cams® allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize.

Selecting the right metal stock and creating the best design is not done by chance. COMP Cams® has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today's engine builders and racers.

These Comp Cam valve springs are designed for the Magnum™, High Energy™ and Xtreme Energy™ flat tappet camshafts.

Made in USA

• Tensile testing, surface inspection and chemical analysis ensures springs are free of defects for optimum strength and durability
• Manufactured from Super Clean™ wire to ensure materials are free of flaws
• Engineered with advanced processing techniques to provide maximum valve control

• Spring Type: Single
• Camshaft Type: Hydraulic / Mechanical
• Outside Diameter: 1.475"
• Inside Diameter: 1.062"
• Installed Pressure: 108 lbs
• Installed Height: 1.8"
• Open Pressure: 317 lbs
• Open Height: 1.3"
• Coil Bind Height: 1.14"
• Spring Rate: 418 lbs./in.

Sold as a set of 16.