Cylinder Head Specifications

CYLINDER HEAD

Application

In. (mm)

Maximum Warpage ⁽¹⁾

.003 (.08)

Valve Seats

Seat Angle

45°

Seat Width

.060-.079 (1.52-2.00)

Maximum Seat Runout

.0015 (.038)

Valve Guides

Valve Guide Bore I.D.

.3174-.3184 (8.062-8.087)

Stem-To-Guide Clearance

Intake

.0008-.0025 (.020-.064)

Exhaust

.0018-.0035 (.046-.089)

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