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Cylinder Head Assemble

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

    IMPORTANT: Lubricate the valve stem with clean engine oil before installing.
  1. Install the valves into the cylinder head.
  2. Install the valve spring lower seat.
    3. Fig 1: View Of Valves & Cylinder Head
    GM663570Courtesy of GENERAL MOTORS CORP.
  3. Install the valve stem seal using J 44640  .
    4. Fig 2: Installing Valve Stem Using J 44640
    GM663571Courtesy of GENERAL MOTORS CORP.
  4. Install the valve spring with the painted end towards the cylinder head.
  5. Install the valve spring upper seat.
  6. Use the J 8062  to compress the valve spring.
    7. Fig 3: Compressing Valve Spring Using J 8062
    GM663501Courtesy of GENERAL MOTORS CORP.
  7. Install the valve keys.
  8. Remove the J 8062  from the cylinder head.
  9. Measure the valve installed height using a ruler. Measure from the base of the valve spring to the top of the valve. Refer to Engine Mechanical Specifications .
    10. Fig 4: Measuring Valve Spring Installed Height
    GM64315Courtesy of GENERAL MOTORS CORP.
  10. Install the remaining valves, springs, and other components.
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