B Series Truck Cylinder Head Valve Spring Specs (1990)
Valve Spring: Specifications
Free Length
Inner
1.732 in
Outer
2.047 in
Pressure
Inner
66 lbf at 1.04 in
Exhaust 94.6 lbf at 1.22 in
Out Of Square Limit Inner
0.06 in
Outer
0.07 in