Operation CHARM: Car repair manuals for everyone.

Cylinder Head Assembly: Specifications

Cylinder head bolt 37 ft.lbs. + 120
degrees
Valve System Lifter Hydraulic Roller
Rocker Arm Ratio 1.66:1
Face Angle 46 degrees
Seat Angle 45 degrees
Minimum Margin 0.025 in.
Seat Runout-Maximum 0.002 in.
Seat Width-Intake 0.060-0.080 in.
Seat Width-Exhaust 0.090-0.110 in.
Stem Height-All 1.93-1.975 inch
Stem Clearance-Intake 0.0012-0.0028 in.
Stem Clearance-Exhaust 0.0014-0.0029 in.
Valve Spring Free Length 1.960 in.
Load-Closed 75 lb @ 1.72 in.
Load-Open 228 lb @ 1.277 in.
Installed Height 1.690-1.750 in.
Approximate Number of Active Coils 4.48
Approximate Number of Total Coils 6.60
Camshaft Journal Diameter 1.8462-1.8448 in.
Intake Maximum Lobe Lift 0.258 inch
Exhaust Maximum Lobe Lift 0.258 inch
Bearing Inside Diameter 1 and 4 1.8428-1.8492 in.
Bearing Inside Diameter 2 and 1.8481-1.8495 in.
Bearing-to-Journal Clearance 0.0016-0.0047 in.
Camshaft sprocket bolt 74 ft.lbs. + 90
degrees
Camshaft thrust Plate Bolt 11 ft.lbs.
Intake Manifold Upper intake manifold bolts (long) 22 ft.lbs.
Upper intake manifold bolts (short) 11 ft.lbs.
Lower intake manifold bolt 11 ft.lbs.
Manifold vacuum source screws 89 in.lbs.
Vacuum source manifold bolt 89 in.lbs.
Exhaust Manifold Exhaust manifold bolt/nut 17 ft.lbs.
Exhaust manifold stud 89 in.lbs.
Exhaust manifold pipe stud 53 in.lbs.