Express 1/2 Ton Van V6-4.3L VIN W (1999)
Valve Spring: Specifications
Valve Spring Free Length
2.02 in
Valve Spring Installed Height (Exhaust) 1.670 - 1.700 in
Valve Spring Installed Height (Intake)
1.670 - 1.700 in
Valve Spring Pressure (Closed)
76 - 84 lbf at 1.70 in
Valve Spring Pressure (Open)
187 - 203 lbf at 1.27 in