FixVault

Valve Spring

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
VALVE SPRING SPECIFICATION

Free height mm (in) 50.58 (1.9913)
Pressure N (kg, lb) at height mm (in) Installation 165.8 - 187.0 (16.9 - 19.1, 37 - 42) at 37.0 (1.457)
Valve open 314.8 - 355.0 (32.1 - 36.2, 71 - 80) at 28.2 (1.110)
Out-of-square mm (in) Less than 2.2 (0.087)