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Cylinder Head Specifications

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CYLINDER HEAD

Application In. (mm)
Maximum Warpage (1)
Valve Seat Angle 45°
Valve Seat Width
Intake .060-.080 (1.52-2.03)
Exhaust .070-.090 (1.78-2.29)
Maximum Seat Runout .002 (.05)
Valve Guides
Intake & Exhaust Valve Guide I.D. .3433-.3443 (8.720-8.745)
Stem-To-Guide Clearance
Standard .0010-.0027 (.025-.069)
Wear Limit .0055 (.140)
(1) No more than .006" (.15 mm) within a 6" (152 mm) area, and no more than .010" (.25 mm) overall. DO NOT  remove more than .010" (.25 mm) material from original surface if machining is required.