Cylinder Head Assembly

Cylinder Head Deck Height - Measuring from the Centerline of Crankshaft to the Deck Face 234.57-234.82 mm (9.235-9.245 in)
Cylinder Head Deck Surface Flatness - Measured Within a 152.4 mm (6.0 in) Area 0.11 mm (0.004 in)
Cylinder Head Deck Surface Flatness - Measuring the Overall Length of the Block Deck 0.22 mm (0.008 in)



Cylinder Head M8 Bolts - in Sequence 30 Nm (22 lb ft)
Cylinder Head M11 Bolts - First Pass in Sequence 30 Nm (22 lb ft)
Cylinder Head M11 Bolts - Second Pass in Sequence 90 degrees
Cylinder Head M11 Bolts - Final Pass in Sequence 70 degrees
Cylinder Head Plug 20 Nm (15 lb ft)
Exhaust Manifold Bolts - First Pass 15 Nm (11 lb ft)
Exhaust Manifold Bolts - Final Pass 20 Nm (15 lb ft)
Exhaust Manifold Heat Shield Bolts 9 Nm (80 lb in)
Exhaust Manifold Studs 20 Nm (15 lb ft)



Intake Manifold Bolts - First Pass in Sequence 5 Nm (44 lb in)
Intake Manifold Bolts - Final Pass in Sequence 10 Nm (89 lb in)
Intake Manifold Sight Shield Retainer Bolts 5 Nm (44 lb in)
J 41798 M8 Bolt 25 Nm (18 lb ft)
J 41798 M10 Bolts 50 Nm (37 lb ft)
Valve Rocker Arm Bolts 30 Nm (22 lb ft)
Valve Rocker Arm Cover Bolts 12 Nm (106 lb in)
Valve System
Valves - Valve Face Angle 45 degrees
Valves - Valve Face Width 1.25 mm (0.05 in)
Valves - Valve Lash Net Lash - No Adjustment
Valve Lift - Exhaust 12.2 mm (0.48 in)
Valve Lift - Intake 12.2 mm (0.48 in)
Valves - Valve Seat Angle 46 degrees
Valves - Valve Seat Runout 0.05 mm (0.002 in)
Valves - Valve Seat Width - Exhaust 1.78 mm (0.07 in)
Valves - Seat Width - Intake 1.02 mm (0.04 in)
Valves - Valve Stem Diameter - Production 7.955-7.976 mm (0.313-0.314 in)
Valves - Valve Stem Diameter - Service 7.95 mm (0.313 in)
Valves - Valve Stem-to-Guide Clearance - Production - Exhaust 0.025-0.066 mm (0.001-0.0026 in)
Valves - Valve Stem-to-Guide Clearance - Service - Exhaust 0.093 mm (0.0037 in)
Valves - Valve Stem-to-Guide Clearance - Production - Intake 0.025-0.066 mm (0.001-0.0026 in)
Valves - Valve Stem-to-Guide Clearance - Service - Intake 0.093 mm (0.0037 in)
Rocker Arms - Valve Rocker Arm Ratio 1.70:1
Valve Springs - Valve Spring Free Length 52.9 mm (2.08 in)
Valve Springs - Valve Spring Installed Height 45.75 mm (1.8 in)
Valve Springs - Valve Spring Load - Closed 340 N at 45.75 mm (76 lb at 1.8 in)
Valve Springs - Valve Spring Load - Open 980 N at 33.55 mm (220 lb at 1.32 in)