Mechanical Specification

Cylinder Head Deck Surface Flatness - Entire Face 0.100 mm (0.004 inch)
Cylinder Head Deck Surface Flatness - Within 150 mm (6 inch) 0.050 mm (0.002 inch)
Cylinder Head Height/Thickness 259.875 - 260.125 mm (10.231 - 10.241 inch)
Surface Flatness
Block Deck 0.050 mm (0.002 inch)
Exhaust Manifold Deck 0.102 mm (0.004 inch)
Intake Manifold Deck 0.080 mm (0.003 inch)
Exhaust Manifold
Surface Flatness 0.254 mm (10.010 inch)
Camshaft
Camshaft Bearing Inside Diameter 49.5480 - 49.5730 mm (1.9507 - 1.9517 inch)
Camshaft Journal Diameter 49.4720 - 49.5220 mm (1.9477 - 1.9497 inch)
Camshaft Lobe Lift
Exhaust 6.973 - 7.075 mm (0.2745 - 0.2785 inch)
Intake 6.924 - 7.026 mm (0.2726 - 0.2766 inch)
Camshaft Runout
Production 0.051 mm (0.002 inch)
Service 0.076 mm (0.003 inch)