Valve Spring
| Valve Spring Free Length | STD | 1.4500 Inch (in) |
| MIN | 1.4043 Inch (in) | |
| Valve Spring Preload | STD | 23.6-27.5 at 1.24 Pound Force At Inch (lbf @ in) |
| MIN | 20.5 at 1.24 Pound Force At Inch (lbf @ in) | |
| Valve Spring Squareness Deviation | MAX | 0.079 Inch (in) |