Engine Valves & Valve Springs Specifications
VALVES & VALVE SPRINGS
| Application | Specification | ||
|---|---|---|---|
| Valve Face Refinishing Angle | 45° | ||
| Valve Face Contact Width | .0433-.0512" (1.10-1.13 mm) | ||
| Valve Guide I.D. | .2362-.2366" (6.000-6.012 mm) | ||
| Valve Head Thickness | |||
| Intake Valve | |||
| Standard | .039" (1.00 mm) | ||
| Minimum | .024" (.60 mm) | ||
| Exhaust Valve | |||
| Standard | .047" (1.20 mm) | ||
| Minimum | .027" (.70 mm) | ||
| Valve Stem Diameter | |||
| Intake | .2348-.2354" (5.965-5.980 mm) | ||
| Exhaust | .2339-2344" (5.940-5.955 mm) | ||
| Valve Stem-To-Guide Clearance | |||
| Intake Valve | |||
| Standard | .0008-.0018" (.020-.047 mm) | ||
| Maximum | .0027" (.070 mm) | ||
| Exhaust Valve | |||
| Standard | .0018-.0028" (.045-.072 mm) | ||
| Maximum | .0035" (.090") | ||
| Valve Spring Free Length | |||
| Inner Spring | |||
| Standard | 1.4204" (36.08 mm) | ||
| Minimum | 1.3780" (35.00 mm) | ||
| Outer Spring | |||
| Standard | 1.5921" (40.44 mm) | ||
| Minimum | 1.5441" (39.22 mm) | ||
| Lbs. @ In. (kg @ mm) | |||
| Valve Spring Pressure (Valve Closed) | |||
| Inner Spring | |||
| Standard | 15.2-17.4 @ 1.08 (6.9-7.9 @ 27.5) | ||
| Minimum | 13.6 @ 1.08 (6.2 @ 27.5) | ||
| Outer Spring | |||
| Standard | 33.9-39.2 @ 1.25 (15.4-17.8 @ 31.7) | ||
| Minimum | 30.4 @ 1.25 (13.8 @ 31.7) | ||