Valves & Valve Springs Specifications
VALVES & VALVE SPRINGS
| Application | Specification | |||
|---|---|---|---|---|
| Intake Valves | ||||
| Seat Angle | 45° | |||
| Valve Head Thickness | ||||
| Standard | .03-.047" (.8-1.2 mm) | |||
| Service Limit | .024" (.6 mm) | |||
| Stem Diameter | ||||
| 8-Valve | .2742-.2748" (6.965-6.980 mm) | |||
| 16-Valve | .2152-.2157" (5.465-5.480 mm) | |||
| Exhaust Valves | ||||
| Seat Angle | 45° | |||
| Valve Head Thickness | ||||
| Standard | .03-.047" (.8-1.2 mm) | |||
| Service Limit | .028" (.70 mm) | |||
| Stem Diameter | ||||
| 8-Valve | .2736-.2742" (6.950-6.965 mm) | |||
| 16-Valve | .2142-.2148" (5.440-5.455 mm) | |||
| Valve Springs | ||||
| Free Length | ||||
| 8-Valve | ||||
| Standard | 1.9866" (50.46 mm) | |||
| Service Limit | 1.9094" (48.50 mm) | |||
| 16-Valve | ||||
| Standard | 1.4500" (36.83 mm) | |||
| Service Limit | 1.4043" (35.67 mm) | |||
| Out-Of-Square | .079" (2.00 mm) | |||
| Lbs. @ In. (kg @ mm) | ||||
| Valve Spring Preload Pressure | ||||
| 8-Valve | ||||
| Standard | 54.7-64.3 @ 1.63 (24.8-29.2 @ 41.5) | |||
| Service Limit | 50.2 @ 1.63 (22.8 @ 41.5) | |||
| 16-Valve | ||||
| Standard | 23.6-27.5 @ 1.24 (10.7-12.5 @ 31.5) | |||
| Service Limit | 20.5 @ 1.24 (9.3 @ 31.5) | |||