Valve Spring
| Free Length Intake | 1.97 Inch (in) |
| Free Length Exhaust | 1.87 Inch (in) |
| Out Of Square Limit | 0.078 Inch (in) |
| Installed Height Intake | 1.687-1.718 Inch (in) |
| Installed Height Exhaust | 1.562-1.593 Inch (in) |
| Spring Pressure, Closed, Intake | 66-74 at 1.70 Pound Force At Inch (lbf @ in) |
| Spring Pressure, Closed, Exhaust | 66-74 at 1.58 Pound Force At Inch (lbf @ in) |
| Spring Pressure, Open, Intake | 165-175 at 1.30 Pound Force At Inch (lbf @ in) |
| Spring Pressure, Open, Exhaust | 165-175 at 1.18 Pound Force At Inch (lbf @ in) |