Cylinder Head (5.7L)

WARNING: This page does not describe the selected car, but rather 55 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Yukon, 1999 GMC Suburban, 1999 GMC Sonoma, and 1999 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.

CYLINDER HEAD (5.7L)

Application				Specification
Valve Seats
Intake Valve
Seat Angle				46°
Seat Width				.04-.065" (1.02-1.65 mm)
Maximum Seat Runout				.002" (.05 mm)
Exhaust Valve
Seat Angle				46°
Seat Width
Light Duty				.065-.098" (1.65-2.49 mm)
Heavy Duty				.059-1.01" (1.5-2.56 mm)
Maximum Seat Runout				.002" (.05 mm)
Valve Guide Oil Clearance				.001-.0027" (.025-.069 mm)
Warpage				.004" (.1 mm)