chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Valve Clearance Specifications|Page 1657 > < Compression Check|Specifications
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Valve Clearance: Specifications
Valve Clearance Specifications

Engine Liter/CID .............................................................................................................................................................................................  7.4L/V8-454

All specifications given in inches.

Stem Diameter Std.

Intake .........................................................................................................................................................................................................  0.3715-0.3722
Exhaust ......................................................................................................................................................................................................  0.3715-0.3722

Maximum Tip Refinish .................................................................................................................................................................................................  [03]
Face Angle
 .................................................................................................................................................................................................................  45 deg.
Margin [01]

Intake .....................................................................................................................................................................................................................  0.0315
Exhaust ...................................................................................................................................................................................................................  0.0315

Valve Lash ......................................................................................................................................................................................................................  [06]

[01] Minimum.
[03] Grind only enough to provide true surface. After grinding valve stems, ensure sufficient clearance remains between rocker arm & valve spring cap

or rotator.

[06] Torque rocker arm bolt to 40 ft. lbs

Valve Clearance Specifications|Page 1657 > < Compression Check|Specifications