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Home >> Geo >> 1994 >> Prizm Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.6L 4-CYL - VIN [6] & 1.8L 4-CYL - VIN [8] >> Engine Specifications >> Cylinder Head Specifications

Cylinder Head Specifications

CYLINDER HEAD

Application Specification
Maximum Warpage
Cylinder Head Surface .002" (.05 mm)
Manifold Surfaces .004" (.10 mm)
Intake & Exhaust
Cylinder Head Valve Guide Bore (Max) (1) .4341" (11.026 mm)
Valve Seats
Seat Angle 45°
Seat Contact Width .039-.055" (1.0-1.4 mm)
Valve Guide I.D. .2366-.2374" (6.010-6.029 mm)
Valve Guide Protrusion .500-.516" (12.70-13.11 mm)
Intake
Valve Stem-To-Guide Oil Clearance
Standard .0010-.0024" (.025-.061 mm)
Wear Limit .003" (.08 mm)
Exhaust
Valve Stem-To-Guide Oil Clearance
Standard .0012-.0026" (.030-.066 mm)
Wear Limit .004" (.01 mm)
(1) If diameter exceeds specification, cylinder head must be machined for oversized valve guide.