Engine Valves & Valve Springs Specifications
WARNING: This page is about a different variant/trim than selected.
VALVES & VALVE SPRINGS
| Application | Specification | ||
|---|---|---|---|
| Intake Valves | |||
| Face Angle | 44 1/2-45° | ||
| Head Diameter | 1.432-1.442" (36.37-36.63 mm) | ||
| Installed Height | 1.6680-1.7187" (42.367-43.655 mm) | ||
| Margin | .033-.046" (.84-1.17 mm) | ||
| Length | 4.504-4.527" (114.41-114.99 mm) | ||
| Stem Diameter | .2730-.2737" (6.935-6.953 mm) | ||
| Exhaust Valves | |||
| Face Angle | 44 1/2-45° | ||
| Head Diameter | 1.137-1.147" (28.87-29.13 mm) | ||
| Installed Height | 1.7600-1.8105" (44.704-45.987 mm) | ||
| Margin | .057-.070" (1.44-1.77 mm) | ||
| Length | 4.948-4.970" (125.67-126.25 mm) | ||
| Stem Diameter | .2719-.2726" (6.906-6.924 mm) | ||
| Valve Springs | |||
| Installed Height | 1.4961" (38 mm) | ||
| Free Lenght | |||
| Intake | 1.7195" (43.675 mm) | ||
| Exhaust | 1.7448" (44.318 mm) | ||
| Lbs. @ In. (kg @ mm) | |||
| Spring Pressure | |||
| Valve Closed | |||
| Intake | 69.5-80.5 @ 1.4961 (31.52-36.51 @ 38.000) | ||
| Exhaust | 71.0-79.0 @ 1.4961 (32.20-35.83 @ 38.000) | ||
| Valve Open | |||
| Intake | 188.0-204.0 @ 1.1594 (85.27-92.53 @ 29.449) | ||
| Exhaust | 130.0-144.0 @ 1.2390 (58.96-65.31 @ 31.471) | ||