Gasket Surface Variation

Cylinder Head Intake Manifold Surface Flatness (measured within a 152.4 mm (6.00 inches) area): 0.10 mm (0.004 inches)
Cylinder Head Deck Surface Flatness: 0.102 mm (0.004 inches)
Cylinder Head Exhaust Manifold Surface Flatness (measured within a 152.4 mm (6.00 inches) area): 0.10 mm (0.004 inches)