Engine Valves & Valve Springs Specifications
VALVES & VALVE SPRINGS
| Application | Specification | ||
|---|---|---|---|
| Intake Valves | |||
| Face Angle | 45° | ||
| Head Thickness | .039" (.99 mm) | ||
| Head Thickness Limit | .023" (.60 mm) | ||
| Stem Diameter | .2148-.2157" (5.456-5.479 mm) | ||
| Runout Limit | .003" (.08 mm) | ||
| Exhaust Valves | |||
| Face Angle | 45° | ||
| Head Thickness | .047" (1.19 mm) | ||
| Head Thickness Limit | .027" (.69 mm) | ||
| Stem Diameter | .2142-.2148" (5.440-5.456 mm) | ||
| Runout Limit | .003" (.08 mm) | ||
| Valve Springs | |||
| Free Length | |||
| Standard | 1.6649" (42.29 mm) | ||
| Wear Limit | 1.6142" (41.00 mm) | ||
| Out-Of-Square | .079" (2.01 mm) | ||
| Lbs. @ In. (kg @ mm) | |||
| Pressure (Valve Closed) | |||
| Standard | 46.1-51.8 @ 1.28 (20.9-23.5 @ 32.5) | ||
| Wear Limit | 41.2 @ 1.28 (18.7 @ 32.5) | ||