Valve/Valve Spring Specifications
VALVES & VALVE SPRINGS SPECIFICATIONS
| Application |
In. (mm) |
| Intake Valves |
| Face Angle |
45.5° |
| Head Diameter |
1.673 (42.49) |
| Minimum Margin |
.031 (.79) |
| Stem Diameter |
.2746-.2754 (6.975-6.995) |
| Valve Face Runout |
.0019 (.048) |
| Exhaust Valves |
| Face Angle |
45.5° |
| Head Diameter |
1.260 (32.00) |
| Minimum Margin |
.031 (.79) |
| Stem Diameter |
.2736-.2744 (6.949-6.970) |
| Valve Face Runout |
.0019 (.048) |
| Valve Springs |
| Free Length |
1.951 (49.55) |
| Out-Of-Square |
2° |
| Pressure |
| Valve Closed |
55 @ 1.57 (24.9 @ 39.9) |
| Valve Open |
131 @ 1.10 (59.4 @ 27.9) |