Engine Valves & Valve Springs Specifications
WARNING: This page is about a different variant/trim than selected.
VALVES & VALVE SPRINGS
| Application | Specification | ||
|---|---|---|---|
| Face Angle | 44° | ||
| Face Runout | .002" (.051 mm) | ||
| Head Diameter | |||
| Intake | 1.71" (43.5 mm) | ||
| Exhaust | 1.36" (34.5 mm) | ||
| Stem Diameter | |||
| Intake | .3159-.3167" (8.024-8.044 mm) | ||
| Exhaust | .3149-.3156" (8.998-8.016 mm) | ||
| Valve Margin | .031" (.79 mm) | ||
| Valve Springs | |||
| Free Length | 1.91" (48.5 mm) | ||
| Installed Height | 1.58-1.61" (40.1-40.9 mm) | ||
| Out-Of-Square | .078" (1.98 mm) | ||
| Lbs. @ In. (kg @ mm) | |||
| Pressure | |||
| Closed | 60-68 @ 1.59 (27-31 @ 37.8) | ||
| Open | 138-149 @ 1.22 (63-68 @ 31.0) | ||