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Home >> Pontiac >> 2004 >> Aztek FWD V6-3.4L VIN E >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications >> General Valve Specifications
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General Valve Specifications

GENERAL SPECIFICATIONS

Valves
Valve Face Angle 45 degrees
Valve Seat Angle 46 degrees
Valve Seat Depth - Intake - from deck face 7.9-8.1 mm (0.311-0.318 inch)
Valve Seat Depth - Exhaust - from deck face 8.9-9.1 mm (0.350-0.358 inch)
Valve Seat Runout 0.037 mm (0.0015 inch)
Valve Seat Width - Intake 1.55-1.80 mm (0.061-0.071 inch)
Valve Seat Width - Exhaust 1.70-2.0 mm (0.067-0.079 inch)
Valve Stem-to-Guide Clearance 0.026-0.068 mm (0.0010-0.0027 inch)

Valve Lifters/Push Rods
Push Rod Length - Intake 146.0 mm (5.75 inch)
Push Rod Length - Exhaust 152.5 mm (6.0 inch)

Valve Springs
Valve Spring Free Length 48.5 mm (1.89 inch)
Valve Spring Installed Height 43.2 mm (1.701 inch)
Valve Spring Load - Closed 320 N @ 43.2 mm (75 lb @ 1.701 inch)
Valve Spring Load - Open 1036 N @ 32 mm (230 lb @ 1.260 inch)
Valve Spring Total Number of Coils 6.55
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