Valve Spring: Specifications
| Valve Spring Free Length | STD | 1.6649 Inch (in) |
| Limit (MIN) | 1.6142 Inch (in) | |
| Valve Spring Preload | STD | 46.1-51.8 at 1.28 Pound Force At Inch (lbf @ in) |
| Limit(MIN) | 41.2 at 1.28 Pound Force At Inch (lbf @ in) | |
| Valve Spring Squareness Deviation(MAX) | 0.079 Inch (in) |