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Home >> Pontiac >> 1987 >> 6000 L4-151 2.5L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> Valve Spring
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Valve Spring

Valve Spring Free Length 2.08 Inch (in)
Valve Spring Installed Height 1.66 Inch (in)
Seat Pressure 78-86 at 1.66 Pound Force At Inch (lbf @ in)
Compressed Pressure 122-180 at 1.25 Pound Force At Inch (lbf @ in)
Note: 1985-86, 170-180 lbs. @1.26 inches.
Out Of Square Limit 0.062 Inch (in)