Engine Valves & Valve Springs Specifications
WARNING: This page is about a different car, the 2004 Infiniti FX45 and 2003 Infiniti FX45. However, it is still accessible from the selected car via links, so may be relevant.
VALVES & VALVE SPRINGS
| Application | In. (mm) | ||
|---|---|---|---|
| Intake Valves | |||
| Face Angle | 45 Degrees 15 Min-45 Degrees 45 Min | ||
| Head Diameter | 1.417-1.429 (36.00-36.30) | ||
| Valve Margin | .0453-.0571 (1.15-1.45) | ||
| Valve Length | 3.8020 (96.57) | ||
| Stem Diameter | .2351-.2354 (5.972-5.980) | ||
| Valve Tip Maximum Refinish | .008 (.20) | ||
| Exhaust Valves | |||
| Face Angle | 45 Degrees 15 Min.-45 Degrees 45 Min. | ||
| Head Diameter | 1.228-1.240 (31.20-31.50) | ||
| Valve Margin | .0728-.0846 (1.85-2.50) | ||
| Valve Length | 3.720 (94.50) | ||
| Stem Diameter | .2347-.2350 (5.962-5.970) | ||
| Valve Tip Maximum Refinish | .008 (.20) | ||
| Valve Springs | |||
| Free Length | 1.8247-1.8444 (46.35-46.85) | ||
| Out-Of-Square | .079 (2.00) | ||
| Lbs. @ In. (kg @ mm) | |||
| Pressure | |||
| Standard | 37-42 @ 1.331 (16.8-19.3 @ 33.8) | ||
| Service Limit | 65-74 @ .961 (29.6-33.7 @ 24.4) | ||