Cylinder Head Specifications

CYLINDER HEAD

Application

Specification

Maximum Warpage ⁽¹⁾

.003" (.08 mm)

Valve Seats

Intake Valve

Seat Angle

45°

Seat Width

.068-.088" (1.73-2.24 mm)

Maximum Seat Runout

.0016" (.040 mm)

Exhaust Valve

Seat Angle

45°

Seat Width

.070-.090" (1.78-2.29 mm)

Maximum Seat Runout

.0016" (.040 mm)

Valve Guides

Intake Valve

Bore Diameter

.3433-.3443" (8.720-8.745 mm)

Valve Stem-To-Guide

Oil Clearance

Standard

.0008-.0027" (.020-.069 mm)

Service Limit

.004" (.10 mm)

Exhaust Valve

Bore Diameter

.3433-.3443" (8.720-8.745 mm)

Valve Stem-To-Guide

Oil Clearance

Standard

.0018-.0037" (.045-.094 mm)

Service Limit

.004" (.10 mm)

⁽¹⁾	Specification listed is taken within a 6" (152 mm) area. Overall warpage is .006" (.15 mm). DO NOT machine more than .010" (.25 mm) from original gasket surface.