Valve Spring
| Valve Spring Free Length | 2.02 Inch (in) |
| Valve Spring Installed Height (Exhaust) | 1.670 - 1.700 Inch (in) |
| Valve Spring Installed Height (intake) | 1.670 - 1.700 Inch (in) |
| Valve Spring Pressure (Closed) | 76 - 84 Pound-Force (lbf) at 1.70 inch |
| Valve Spring Pressure (Open) | 187 - 203 Pound-Force (lbf) at 1.27 inch |