COMP Cams 910-1 Single Outer Valve Spring OD - 1.354

The COMP Cams 910-1 is a high-performance single outer valve spring designed for precision engine builds and performance applications. This spring features a 1.354" outside diameter and .940" inside diameter, making it suitable for custom valve train assemblies where precise spring characteristics are required.

Key Specifications:

• Outside Diameter: 1.354 inches
• Inside Diameter: 0.930 inches
• Installed Height: 1.850 inches
• Spring Rate: 458 lbs/in
• Includes Damper: Yes
• Coil Bind Height: 1.28 inches
• Installed Pressure: 85 lbs at 1.85" / Open Pressure: 275 lbs at 1.35"

Performance Features:

• Manufactured from Super Clean wire for superior strength and durability
• Precision wound for consistent valve train control
• Integrated damper design reduces harmonics and valve float
• Suitable for mechanical camshaft applications
• Sold individually for custom spring assembly configurations

Upgraded valve springs are essential for high horsepower applications to maintain proper valve control. The 910-1 is particularly popular in diesel performance builds and custom valve train assemblies where builders need to match spring characteristics to specific camshaft profiles. This single outer spring design allows engine builders to create custom dual spring assemblies or replace individual springs as needed.

Application Notes:

When shimming is properly applied, this spring is suitable for applications where boost levels approach 40 psi or above. The spring must be matched to your camshaft specifications and installed height requirements for optimal performance. Consult COMP Cams valve spring charts or technical support to ensure proper spring selection for your specific build.