Cylinder Block
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Measure warpage of cylinder block deck surface. If warpage exceeds specification, replace cylinder block. DO NOT machine cylinder block deck surface. See CYLINDER BLOCK table under ENGINE SPECIFICATIONS. If cylinder bore taper and out-of-round are not with specification, machine cylinder bore and/or replace piston.