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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Engine Mechanical - 6.6L (On-Vehicle)) >> Engine Specifications >> Engine Valves & Valve Springs Specifications

Engine Valves & Valve Springs Specifications

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
VALVES & VALVE SPRINGS

Application Specification
Valves
Intake
Face Angle 45°
Head Diameter 1.30" (33 mm)
Margin .0472" (1.2 mm)
Stem Diameter .28" (7.0 mm)
Exhaust
Face Angle 45°
Head Diameter 1.22" (31 mm)
Margin .0394" (1.0 mm)
Stem Diameter .28" (7.0 mm)
Valve Springs
Installed Height 1.61" (41.0 mm)
Out-Of-Square .0787" (2.00 mm)
Lbs. @ In. (kg @ mm) 
Pressure
Valve Closed 61.8 @ 1.61 (28 @ 41.0)
Valve Open 68.8 @ 1.61 (31 @ 41.0)