Cylinder Block

I.D. (Bore) 83.50 - 83.53 mm (3.29 inch)
Flatness of Top Surface 0.05 mm (0.002 inch)
Service Limit 0.1 mm (0 004 inch)
Grinding Limit of Top Surface 0.2 mm (0.008 inch)

CAUTION: Gasket surface grinding is a combined specification for the cylinder head and the block.