Valve Spring: Specifications
| Inner Spring Free Length | STD | 1.4204 Inch (in) |
| MIN | 1.3780 Inch (in) | |
| Outer Spring Free length | STD | 1.5921 Inch (in) |
| MIN | 1.5441 Inch (in) | |
| Inner Spring Preload | STD | 15.2-17.4 at 1.08 Pound Force At Inch (lbf @ in) |
| MIN | 13.6 at 1.08 Pound Force At Inch (lbf @ in) | |
| Outer Spring Preload | STD | 33.9-39.2 at 1.25 Pound Force At Inch (lbf @ in) |
| MIN | 30.4 at 1.25 Pound Force At Inch (lbf @ in) |