Cylinder Head Assembly

Cylinder Head Deck Surface Flatness 0.050-0.152 mm (0.002-0.006 in.)
Exhaust Manifold
Surface Flatness - Flange to Flange 0.25 mm (0.010 in.)
Surface Flatness - Individual Flange 0.05 mm (0.002 in)
Intake Manifold
Surface Flatness 0.10 mm (0.004 in.)
Valve System
Valves - Valve Face Angle 45 degrees
Valves - Valve Seat Angle 46 degrees
Valves - Valve Seat Runout 0.05 mm (0.002 in.)
Valves - Valve Seat Width - Intake 1.016-1.651 mm (0.040-0.065 in.)
Valves - Valve Seat Width - Exhaust 1.651-2.489 mm (0.065-0.098 in.)
Valves - Valve Stem Oil Seal Installed Height 1-2 mm (0.03937-0.07874 in.)
Valves - Valve Stem-to-Guide Clearance - Intake -
Production 0.025-0.069 mm (0.0010-0.0027 in.)
Valves - Valve Stem-to-Guide Clearance - Intake -
Service 0.025-0.094 mm (0.0010-0.0037 in.)
Valves - Valve Stem-to-Guide Clearance - Exhaust -
Production 0.025-0.069 mm (0.0010-0.0027 in.)
Valves - Valve Stem-to-Guide Clearance - Exhaust -
Service 0.025-0.094 mm (0.0010-0.0037 in.)
Rocker Arms - Valve Rocker Arm Ratio 1.5:1
Valve Springs - Valve Spring Free Length 51.3 mm (2.02 in.)
Valve Springs - Valve Spring Installed Height -
Intake 42.92-43.43 mm (1.670-1.700 in.)
Valve Springs - Valve Spring Installed Height -
Exhaust 42.92-43.43 mm (1.670-1.700 in.)
Valve Springs - Valve Spring Load - Closed 338-374 N @ 43.2 mm (76-84 lb @ 1.70 in.)
Valve Springs - Valve Spring Load - Open 832-903 N @ 32.3 mm (187-203 lb @ 1.27 in.)
Cylinder Head Deck Surface Flatness 0.050-0.152 mm (0.002-0.006 in.)
Camshaft Sprocket Bolt 25 Nm (18 lb ft.)





Cylinder Head Bolt (NEW)

All Bolts First Pass in Sequence 30 Nm (22 lb ft.)
Long Bolts Final Pass in Sequence 75 degrees
Medium Bolts Final Pass in Sequence 65 degrees
Short Bolts Final Pass in Sequence 55 degrees
Cylinder Head Core Hole Plug 20 Nm (15 lb ft.)


Intake Manifold Specifications

Exhaust Manifold Specifications

Camshaft Gear/Sprocket Specifications