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GMC Workshop Service and Repair Manuals

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Pressure Values|Page 1292 > < Seat Dimensions|Page 1287

V 3500 P/U 4WD V8-379 6.2L DSL (1988)

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Valve Spring: Specifications

 

Intake

Exhaust 

   

  

  

 

Closed

80 lbf at 1.81 in

80 lbf at 1.81 in 

   

  

  

 

Open

230 lbf at 1.39 in 

   

    

  

 

Pressure Values|Page 1292 > < Seat Dimensions|Page 1287