Valve Spring
| Valve Spring Free Length | 2.08 Inch (in) |
| Valve Spring Installed Height (Exhaust) | 1.8 Inch (in) |
| Valve Spring Installed Height (Intake) | 1.8 Inch (in) |
| Valve Spring Pressure (Closed) | 76. at 1.8 Pound Force At Inch (lbf @ in) |
| Valve Spring Pressure (Open) | 220 at 1.32 Pound Force At Inch (lbf @ in) |