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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 371 (Engine Mechanical - 3.0L) >> Engine Specifications >> Cylinder Head Specifications

Cylinder Head Specifications

WARNING: This page is about a different car, the 2003 Saturn Vue and 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD

Application Specification
Maximum Warpage
Exhaust Manifold .010" (.25 mm)
Head Gasket Surface (1) .0010" per 3.917" (.025 mm per 100 mm)
Valve Guides
Guide Inside Diameter
Exhaust .2362-.2367" (6.000-6.012 mm)
Intake .2362-.2367" (6.000-6.012 mm)
Guide Installed Height .5394-.5512" (13.7-14.0 mm)
Valve Stem-To-Guide Oil Clearance
Exhaust .0012-.0022" (.030-.057 mm)
Intake .0012-.0022" (.030-.057 mm)
Valve Seat Angle 45 Degrees
Valve Seat Bore Diameter
Exhaust (2)
Intake (2)
Valve Seat Run-Out Maximum .0020" (.05 mm)
Valve Seat Width
Exhaust 0551-.0709" (1.0-1.8 mm)
Intake .0394-.0551" (1.0-1.4 mm)
Valve Seat Insert Diameter
Exhaust (2)
Intake (2)
(1) If cylinder head warpage is more than .00039 in. (.010 mm) and is less than .0039 in. (.100 mm) cylinder head should be machined. If cylinder head warpage is .0039 in. (.100 mm) or more cylinder head should be replaced.
(2) Information is not available from manufacturer.