Engine Valves & Valve Springs Specifications
VALVES & VALVE SPRINGS
| Application | Specification | |
|---|---|---|
| Intake Valves | ||
| Face Angle | 45° | |
| Head Diameter | 1.57" (40 mm) | |
| Minimum Margin | .0313" (.795 mm) | |
| Stem Diameter | .3126-.3134" (7.940-7.960 mm) | |
| Exhaust Valves | ||
| Face Angle | 45° | |
| Head Diameter | 1.30" (33.0 mm) | |
| Minimum Margin | .0313" (.794 mm) | |
| Stem Diameter | .3121-.3129" (7.927-7.948 mm) | |
| Valve Springs | ||
| Free Length | 1.83" (46.5 mm) | |
| Installed Height | 1.65-1.74" (42.0-44.2 mm) | |
| Out-Of-Square | .078" (1.98 mm) | |
| Lbs. @ In. (kg @ mm) | ||
| Valve Spring Pressure | ||
| Valve Closed | 65 @ 1.58 (30 @ 40.1) | |
| Valve Open | 180 @ 1.16 (82 @ 29.5) | |