Cylinder Head Warpage

NOTE: Using a precision straight edge and a feeler gauge, measure the surface contacting the cylinder block and the manifolds for warpage.

Maximum warpage
Cylinder block side 0.05 mm (0.0020 inch)
Intake manifold side 0.08 mm (0.0031 inch)
Exhaust manifold side 0.08 mm (0.0031 inch)