Cylinder Head Specifications

CYLINDER HEAD

Application

Specification

Warpage Limit

⁽¹⁾

Valve Seats

Intake Valve

Seat Angle

N/A

Maximum Seat Margin

1.6L

.020" (.50 mm)

1.8L

.024" (.60 mm)

Minimum Seat Width

.059" (1.50 mm)

Exhaust Valve

Seat Angle

N/A

Maximum Seat Margin

1.6L

0" (0 mm)

1.8L

.024" (.60 mm)

Minimum Seat Width

.059" (1.50 mm)

Maximum Valve Stem-To-Guide Oil

Clearance

.0078" (.198 mm)

⁽¹⁾	Resurface cylinder head if warpage exceeds .0078" (.198 mm). Replace cylinder head if warpage exceeds .0158" (.401 mm).