Valve Spring
| Free Length (Intake and Exhaust) | Standard | 1.56 Inch (in) |
| Squareness | Standard | 0.080 in. |
| Service Limit | 0.100 in | |
| Force/Tension at 21.50 mm (0.847) | Standard | 99 - 109 Pound-Force (lbf) |
| Service Limit | 94 Pound-Force (lbf) | |
| Force/Tension at 31.00 mm (1.221) | Standard | 42 - 48 Pound-Force (lbf) |
| Service Limit | 40 Pound-Force (lbf) |