Engine Valves & Valve Springs Specifications
VALVES & VALVE SPRINGS
| Application | Specification | |||
|---|---|---|---|---|
| Intake Valves | ||||
| Face Angle | 45° | |||
| Head Thickness | ||||
| Standard | .039 (1.0) | |||
| Limit | .024 (.60) | |||
| Face Width | .0433-.0512 (1.1-1.3) | |||
| Stem Diameter | .2348-.2354 (5.964-5.980) | |||
| Exhaust Valves | ||||
| Face Angle | 45° | |||
| Head Thickness | ||||
| Standard | .047 (1.2) | |||
| Limit | .028 (.71) | |||
| Face Width | .0433-.0512 (1.1-1.3) | |||
| Stem Diameter | .2339-.2344 (5.941-5.953) | |||
| Valve Springs | ||||
| Free Length | ||||
| Inner | ||||
| Standard | 1.4204 (36.08) | |||
| Limit | 1.3780 (35.00) | |||
| Outer | ||||
| Standard | 1.5921 (40.44) | |||
| Limit | 1.5441 (39.22) | |||
| Out-Of-Square | .079 (2.0) | |||
| Lbs. @ In. (kg @ mm) | ||||
| Preload | ||||
| Inner | ||||
| Standard | 15.2-17.4 @ 1.08 (6.9-7.9 @ 27.5) | |||
| Limit | 13.6 @ 1.08 (6.2 @ 27.5) | |||
| Outer | ||||
| Standard | 33.9-39.2 @ 1.25 (15.4-17.8 @ 31.7) | |||
| Limit | 30.4 @ 1.25 (13.8 @ 31.7) | |||