Valve Spring: Specifications
| Free Length | Intake | Inner | 1.819 Inch (in) |
| Outer | 1.948 Inch (in) | ||
| Exhaust | Inner | 2.071 Inch (in) | |
| Exhaust | 2.274 Inch (in) | ||
| Pressure | Intake | Inner | 21-22 at 1.555 Pound Force At Inch (lbf @ in) |
| Outer | 31-33 at 1.733 Pound Force At Inch (lbf @ in) | ||
| Exhaust | Inner | 33-37.4 at 1.594 Pound Force At Inch (lbf @ in) | |
| Outer | 51.9-58.7 at 1.772 Pound Force At Inch (lbf @ in) | ||
| Out Of Square Limit | Intake | Inner | 0.063 Inch (in) |
| Outer | 0.071 Inch (in) | ||
| Exhaust | Inner | 0.073 Inch (in) | |
| Outer | 0.08 Inch (in) |