Ford Workshop Service and Repair Manuals

Valve: Specifications

DIMENSIONS

Valve Arrangement Front To Rear

Right .....................................................................................................................................................................................................  I-E-I-E-I-E-I-E
Left .......................................................................................................................................................................................................  E-I-E-I-E-I-E-I

Valve Stem To Guide Clearance(a)

Intake  ...........................................................................................................................................................................................  0.0010-0.0027 inch
Exhaust ..........................................................................................................................................................................................  0.0010-0.0027 inch

Valve Head Diameter(b)

Intake ................................................................................................................................................................................................  2.075-2.090 inch
Exhaust ..............................................................................................................................................................................................  1.646-1.661 inch

Valve Face Runout Max. ...................................................................................................................................................................................  0.002 TIR
Valve Stem Diameter

Standard

Intake ......................................................................................................................................................................................  0.3415-0.3423 inch
Exhaust ....................................................................................................................................................................................  0.3415-0.2423 inch

0.015 Oversize

Intake ......................................................................................................................................................................................  0.3565-0.3573 inch
Exhaust ....................................................................................................................................................................................  0.3565-0.3573 inch

0.030 Oversize

Intake ......................................................................................................................................................................................  0.3715-0.3723 inch
Exhaust ....................................................................................................................................................................................  0.3715-0.3723 inch

(a) Service clearance - 0.0055 inch.
(b) Valve face angle - 44°.