Valve Spring
| Free Length Intake | 2.04 Inch (in) |
| Free Length Exhaust | 1.85 Inch (in) |
| Out Of Square Limit | 0.078 Inch (in) |
| Installed Height Intake | 1.765-1.797 Inch (in) |
| Installed Height Exhaust | 1.578-1.609 Inch (in) |
| Spring Pressure, Closed, Intake | 74-82 at 1.78 Pound Force At Inch (lbf @ in) |
| Spring Pressure, Closed, Exhaust | 76-84 at 1.60 Pound Force At Inch (lbf @ in) |
| Spring Pressure, Open, Intake | 190-210 at 1.36 Pound Force At Inch (lbf @ in) |
| Spring Pressure, Open, Exhaust | 190-210 at 1.20 Pound Force At Inch (lbf @ in) |