Valve Spring
| Spring Free Length | Intake | 1.91 Inch (in) |
| Exhaust | 1.91 Inch (in) | |
| Spring Assembled Height | Intake | 1.578-1.609 Inch (in) |
| Exhaust | 1.578-1.609 Inch (in) | |
| Spring Out Of Square | 0.078 Inch (in) | |
| Spring Compression Pressure At Specified Height | Intake | 256-282 at 1.56-1.59 Pound Force At Inch (lbf @ in) |