Valve Spring
| Valve Spring Free Length | 0.220 Inch (in) |
| Valve Spring Installed Height (Intake) | 1.8 Inch (in) |
| Valve Spring Installed Height (Exhaust) | 1.8 Inch (in) |
| Valve Spring Pressure (Closed) | 90 lb. at 1.8 in |
| Valve Spring Pressure (Open) | 259 lb. at 1.32 in |