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Home >> Pontiac >> 1987 >> Safari >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L (307") V8 - VIN [Y] >> Engine Specifications >> Valve Specifications

Valve Specifications

VALVE SPECIFICATIONS

Application Specification
Intake
Head Diameter 1.745-1.755" (44.32-44.57 mm)
Face Angle 44°
Seat Angle 45°
Seat Width .037-.075" (.94-1.91 mm)
Stem Diameter .3425-.3432" (8.699-8.717 mm)
Stem Clearance .0010-.0027" (.025-.069 mm)
Valve Lift .400" (10.16 mm)
Exhaust
Head Diameter 1.497-1.507" (38.02-38.28 mm)
Face Angle 30°
Seat Angle 31°
Seat Width .050-.090" (1.27-2.29 mm)
Stem Diameter .3420-.3427" (8.686-8.704 mm)
Stem Clearance .0015-.0032" (.038-.081 mm)
Valve Lift .400" (10.16 mm)