Valve Spring: Specifications
| Intake | Jet Valve | Exhaust | |
| Installed Height | 1.756 Inch (in) | 1.165 Inch (in) | 1.756 Inch (in) |
| Valve Spring Pressure | 53 at 1.469 Pound Force At Inch (lbf @ in) | 6 at .846 Pound Force At Inch (lbf @ in) | 53 at 1.469 Pound Force At Inch (lbf @ in) |