Cylinder Head Specifications

CYLINDER HEAD

Application

Specification

1.5L

Cylinder Head Height (New)

4.720-4.728" (119.90-120.10 mm)

Maximum Warpage

⁽¹⁾.003" (.008 mm)

Valve Seats

Intake Valve

Seat Angle

45-45.5°

Seat Width

.035-.051" (.90-1.30 mm)

Exhaust Valve

Seat Angle

45-45.5°

Seat Width

.035-.051" (.90-1.30 mm)

Valve Guides

Valve Guide Installed Height

.669" (17.00 mm)

Intake Valve

Valve Stem-To-Guide Oil Clearance

Standard

.0008-.0020" (.020-.050 mm)

Service Limit

.004" (.10 mm)

Exhaust Valve

Valve Stem-To-Guide Oil Clearance

Standard

.0020-.0035" (.050-.090 mm)

Service Limit

.006" (.150 mm)

1.8L

Cylinder Head Height (New)

4.720-4.728" (119.90-120.10 mm)

Maximum Warpage

⁽¹⁾.0012" (.03 mm)

Valve Seats

Intake Valve

Seat Angle

45-45.5°

Seat Width

.0354-.0512" (.90-1.30 mm)

Exhaust Valve

Seat Angle

45-45.5°

Seat Width

.0354-.0512" (.90-1.30 mm)

Valve Guides

Intake Valve

Valve Stem-To-Guide Oil Clearance

Standard

.0008-.0020" (.02-.05 mm)

Service Limit

.004" (.10 mm)

Exhaust Valve

Valve Stem-To-Guide Oil Clearance

Standard

.0020-.0035" (.05-.09 mm)

Service Limit

.006" (.150 mm)

⁽¹⁾	If deck warpage exceeds specification, machine surface. DO NOT remove more than a combined total of.008" (.20 mm) material from original surfaces of cylinder head and cylinder block.