Valve Spring: Specifications
| Free Length | Intake | Inner | 1.819 Inch (in) |
| Outer | 1.949 Inch (in) | ||
| Exhaust | Inner | 2.071 Inch (in) | |
| Outer | 2.274 Inch (in) | ||
| Pressure | Intake | Inner | 21-22 at 1.555 Gram Force At Millimeter (gf @ mm) |
| Outer | 31-33 at 1.969 Gram Force At Millimeter (gf @ mm) | ||
| Exhaust | Inner | 27.5-37.4 at 1.496 Gram Force At Millimeter (gf @ mm) | |
| Outer | 51.9-58-7 at 1.380 Gram Force At Millimeter (gf @ mm) | ||
| 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) |