Cylinder Head Overhaul Specifications

Engine Liter/CID 4.3L/V6-262

All specifications given in inches.

Cylinder Head Warpage Limit 0.004
Valve Guides
Inside Diameter (Std.) 0.3437
Stem To Guide Clearance
Intake [03] 0.0010-0.0027
Exhaust [04] 0.0010-0.0027
Valve Seats
Seat Angle, Degrees 46
Seat Width
Intake 0.0350-0.0600
Exhaust 0.062-0.093
Runout 0.002

[03] Service limit, 0.0037 inch.
[04] Service limit, 0.0047 inch.