Valve Spring
| Intake valve spring free length | 1.91 Inch (in) |
| Exhaust valve spring free length | 1.91 Inch (in) |
| Intake valve spring assembled height | 1.578 - 1.609 Inch (in) |
| Exhaust valve spring assembled height | 1.578 - 1.609 Inch (in) |
| Valve spring out of square | 0.078 Inch (in) |
| Intake valve spring compression pressure at specified height | 256 - 282 at 1.56 - 1.59 Pound Force At Inch (lbf @ in) |