Operation CHARM
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GMC Truck
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1989
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R 2500 P/U 2WD V8-454 7.4L
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Repair and Diagnosis
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Specifications
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Mechanical Specifications
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Engine
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Cylinder Head Assembly
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Valve Spring
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Spring Dimension
Spring Dimension
Free Length
2.12 Inch (in)
Out Of Square Limit
0.062 Inch (in)
Installed Height
1.766-1.828 Inch (in)